diff --git a/src/indexer.h b/src/indexer.h
index 73cfb91c..39dea771 100644
--- a/src/indexer.h
+++ b/src/indexer.h
@@ -452,7 +452,7 @@ struct IndexVar {
 
   std::vector<Range> declarations;
   // Usages.
-  std::vector<Range> uses;
+  std::vector<Reference> uses;
 
   IndexVar() {}  // For serialization.
   IndexVar(IndexVarId id, Usr usr) : usr(usr), id(id) {
diff --git a/src/messages/text_document_code_action.cc b/src/messages/text_document_code_action.cc
index 97d14a47..22c8d990 100644
--- a/src/messages/text_document_code_action.cc
+++ b/src/messages/text_document_code_action.cc
@@ -148,8 +148,8 @@ optional<lsTextEdit> BuildAutoImplementForFunction(QueryDatabase* db,
                                                    QueryFileId impl_file_id,
                                                    QueryFunc& func) {
   assert(func.def);
-  for (const QueryLocation& decl : func.declarations) {
-    if (decl.FileId() != decl_file_id)
+  for (const Reference& decl : func.declarations) {
+    if (GetFileId(db, decl) != decl_file_id)
       continue;
 
     optional<lsRange> ls_decl = GetLsRange(working_file, decl.range);
@@ -202,8 +202,8 @@ optional<lsTextEdit> BuildAutoImplementForFunction(QueryDatabase* db,
             if (!sym_func.def || !sym_func.def->definition_extent)
               break;
 
-            for (QueryLocation& func_decl : sym_func.declarations) {
-              if (func_decl.FileId() == decl_file_id) {
+            for (const Reference& func_decl : sym_func.declarations) {
+              if (GetFileId(db, func_decl) == decl_file_id) {
                 int dist = func_decl.range.start.line - decl.range.start.line;
                 if (abs(dist) < abs(best_dist)) {
                   optional<lsLocation> def_loc = GetLsLocation(
diff --git a/src/messages/text_document_code_lens.cc b/src/messages/text_document_code_lens.cc
index 4a72514d..bda5df3d 100644
--- a/src/messages/text_document_code_lens.cc
+++ b/src/messages/text_document_code_lens.cc
@@ -76,6 +76,7 @@ struct CommonCodeLensParams {
   WorkingFile* working_file;
 };
 
+// FIXME Reference
 void AddCodeLens(const char* singular,
                  const char* plural,
                  CommonCodeLensParams* common,
@@ -270,8 +271,13 @@ struct TextDocumentCodeLensHandler
           if (var.def->is_macro())
             force_display = false;
 
+          // FIXME Reference
+          std::vector<QueryLocation> uses;
+          for (auto x: var.uses)
+            uses.push_back(QueryLocation{x.range, GetFileId(db, x), x.role});
+
           AddCodeLens("ref", "refs", &common, ref.loc.OffsetStartColumn(0),
-                      var.uses, var.def->definition_spelling, force_display);
+                      uses, var.def->definition_spelling, force_display);
           break;
         }
         case SymbolKind::File:
diff --git a/src/messages/text_document_definition.cc b/src/messages/text_document_definition.cc
index b85b4425..b3559538 100644
--- a/src/messages/text_document_definition.cc
+++ b/src/messages/text_document_definition.cc
@@ -23,20 +23,18 @@ struct Out_TextDocumentDefinition
 };
 MAKE_REFLECT_STRUCT(Out_TextDocumentDefinition, jsonrpc, id, result);
 
-std::vector<QueryLocation> GetGotoDefinitionTargets(QueryDatabase* db,
-                                                    const SymbolIdx& symbol) {
+std::vector<Reference> GetGotoDefinitionTargets(QueryDatabase* db,
+                                                const SymbolIdx& symbol) {
   switch (symbol.kind) {
     // Returns GetDeclarationsOfSymbolForGotoDefinition and
     // variable type definition.
     case SymbolKind::Var: {
-      std::vector<QueryLocation> ret =
+      std::vector<Reference> ret =
           GetDeclarationsOfSymbolForGotoDefinition(db, symbol);
       QueryVar& var = db->vars[symbol.idx];
-      // FIXME WithGen
       if (var.def && var.def->variable_type) {
-        std::vector<QueryLocation> types =
-            GetDeclarationsOfSymbolForGotoDefinition(
-                db, SymbolIdx(SymbolKind::Type, var.def->variable_type->id));
+        std::vector<Reference> types = GetDeclarationsOfSymbolForGotoDefinition(
+            db, SymbolIdx(SymbolKind::Type, var.def->variable_type->id));
         ret.insert(ret.end(), types.begin(), types.end());
       }
       return ret;
@@ -94,9 +92,8 @@ struct TextDocumentDefinitionHandler
                        def_loc->range.Contains(target_line, target_column))) {
         // Goto declaration.
 
-        std::vector<QueryLocation> targets =
-            GetGotoDefinitionTargets(db, ref.idx);
-        for (QueryLocation target : targets) {
+        std::vector<Reference> targets = GetGotoDefinitionTargets(db, ref.idx);
+        for (Reference target : targets) {
           optional<lsLocation> ls_target =
               GetLsLocation(db, working_files, target);
           if (ls_target)
diff --git a/src/messages/text_document_highlight.cc b/src/messages/text_document_highlight.cc
index 515b1b72..507f2369 100644
--- a/src/messages/text_document_highlight.cc
+++ b/src/messages/text_document_highlight.cc
@@ -38,10 +38,10 @@ struct TextDocumentDocumentHighlightHandler
     for (const SymbolRef& ref :
          FindSymbolsAtLocation(working_file, file, request->params.position)) {
       // Found symbol. Return references to highlight.
-      std::vector<QueryLocation> uses = GetUsesOfSymbol(db, ref.idx, true);
+      std::vector<Reference> uses = GetUsesOfSymbol(db, ref.idx, true);
       out.result.reserve(uses.size());
-      for (const QueryLocation& use : uses) {
-        if (use.FileId() != file_id)
+      for (const Reference& use : uses) {
+        if (GetFileId(db, use) != file_id)
           continue;
 
         optional<lsLocation> ls_location =
diff --git a/src/messages/text_document_references.cc b/src/messages/text_document_references.cc
index 2617a1d6..7a71debb 100644
--- a/src/messages/text_document_references.cc
+++ b/src/messages/text_document_references.cc
@@ -54,10 +54,10 @@ struct TextDocumentReferencesHandler
     for (const SymbolRef& ref :
          FindSymbolsAtLocation(working_file, file, request->params.position)) {
       // Found symbol. Return references.
-      std::vector<QueryLocation> uses = GetUsesOfSymbol(
+      std::vector<Reference> uses = GetUsesOfSymbol(
           db, ref.idx, request->params.context.includeDeclaration);
       out.result.reserve(uses.size());
-      for (const QueryLocation& use : uses) {
+      for (const Reference& use : uses) {
         optional<lsLocation> ls_location =
             GetLsLocation(db, working_files, use);
         if (ls_location)
diff --git a/src/messages/text_document_rename.cc b/src/messages/text_document_rename.cc
index 4a789fbc..53f8c438 100644
--- a/src/messages/text_document_rename.cc
+++ b/src/messages/text_document_rename.cc
@@ -6,17 +6,17 @@ namespace {
 
 lsWorkspaceEdit BuildWorkspaceEdit(QueryDatabase* db,
                                    WorkingFiles* working_files,
-                                   const std::vector<QueryLocation>& locations,
+                                   const std::vector<Reference>& refs,
                                    const std::string& new_text) {
   std::unordered_map<QueryFileId, lsTextDocumentEdit> path_to_edit;
 
-  for (auto& location : locations) {
+  for (auto& ref : refs) {
     optional<lsLocation> ls_location =
-        GetLsLocation(db, working_files, location);
+        GetLsLocation(db, working_files, ref);
     if (!ls_location)
       continue;
 
-    QueryFileId file_id = location.FileId();
+    QueryFileId file_id = GetFileId(db, ref);
     if (path_to_edit.find(file_id) == path_to_edit.end()) {
       path_to_edit[file_id] = lsTextDocumentEdit();
 
@@ -98,9 +98,9 @@ struct TextDocumentRenameHandler : BaseMessageHandler<Ipc_TextDocumentRename> {
     for (const SymbolRef& ref :
          FindSymbolsAtLocation(working_file, file, request->params.position)) {
       // Found symbol. Return references to rename.
-      std::vector<QueryLocation> uses = GetUsesOfSymbol(db, ref.idx, true);
-      out.result =
-          BuildWorkspaceEdit(db, working_files, uses, request->params.newName);
+      out.result = BuildWorkspaceEdit(db, working_files,
+                                      GetUsesOfSymbol(db, ref.idx, true),
+                                      request->params.newName);
       break;
     }
 
diff --git a/src/messages/workspace_symbol.cc b/src/messages/workspace_symbol.cc
index d2414a01..f6dcc5a7 100644
--- a/src/messages/workspace_symbol.cc
+++ b/src/messages/workspace_symbol.cc
@@ -23,15 +23,17 @@ bool InsertSymbolIntoResult(QueryDatabase* db,
     return false;
 
   optional<QueryLocation> location = GetDefinitionExtentOfSymbol(db, symbol);
-  if (!location) {
+  Reference loc;
+  if (location)
+    loc = *location;
+  else {
     auto decls = GetDeclarationsOfSymbolForGotoDefinition(db, symbol);
     if (decls.empty())
       return false;
-    location = decls[0];
+    loc = decls[0];
   }
 
-  optional<lsLocation> ls_location =
-      GetLsLocation(db, working_files, *location);
+  optional<lsLocation> ls_location = GetLsLocation(db, working_files, loc);
   if (!ls_location)
     return false;
   info->location = *ls_location;
diff --git a/src/query.cc b/src/query.cc
index bea56521..9a5e9a1f 100644
--- a/src/query.cc
+++ b/src/query.cc
@@ -293,8 +293,8 @@ QueryFile::DefUpdate BuildFileDefUpdate(const IdMap& id_map, const IndexFile& in
       add_all_symbols(id_map.ToSymbol(var.id), SymbolRole::Declaration, decl);
       add_outline(id_map.ToSymbol(var.id), decl);
     }
-    for (const Range& use : var.uses)
-      add_all_symbols(id_map.ToSymbol(var.id), SymbolRole::Reference, use);
+    for (auto& use : var.uses)
+      add_all_symbols(id_map.ToSymbol(var.id), use.role, use.range);
   }
 
   std::sort(def.outline.begin(), def.outline.end(),
@@ -453,12 +453,12 @@ QueryVarId IdMap::ToQuery(IndexVarId id) const {
 QueryFuncRef IdMap::ToQuery(IndexFuncRef ref) const {
   return QueryFuncRef{ToQuery(ref.id), ToQuery(ref.loc, ref.role)};
 }
-QueryLocation IdMap::ToQuery(IndexFunc::Declaration decl) const {
+Reference IdMap::ToQuery(IndexFunc::Declaration decl) const {
   // TODO: expose more than just QueryLocation.
-  return QueryLocation{decl.spelling, primary_file, SymbolRole::Declaration};
+  return Reference{decl.spelling, Id<void>(primary_file), SymbolKind::File, SymbolRole::Declaration};
 }
-std::vector<QueryLocation> IdMap::ToQuery(const std::vector<Range>& a) const {
-  std::vector<QueryLocation> ret;
+std::vector<Reference> IdMap::ToQuery(const std::vector<Range>& a) const {
+  std::vector<Reference> ret;
   ret.reserve(a.size());
   for (auto& x : a)
     ret.push_back(ToQuery(x, SymbolRole::Reference));
@@ -645,7 +645,7 @@ IndexUpdate::IndexUpdate(const IdMap& previous_id_map,
         }
 
         PROCESS_UPDATE_DIFF(QueryFuncId, funcs_declarations, declarations,
-                            QueryLocation);
+                            Reference);
         PROCESS_UPDATE_DIFF(QueryFuncId, funcs_derived, derived, QueryFuncId);
         PROCESS_UPDATE_DIFF(QueryFuncId, funcs_callers, callers, QueryFuncRef);
       });
@@ -697,8 +697,8 @@ IndexUpdate::IndexUpdate(const IdMap& previous_id_map,
               current->usr, std::move(*current_remapped_def)));
 
         PROCESS_UPDATE_DIFF(QueryVarId, vars_declarations, declarations,
-                            QueryLocation);
-        PROCESS_UPDATE_DIFF(QueryVarId, vars_uses, uses, QueryLocation);
+                            Reference);
+        PROCESS_UPDATE_DIFF(QueryVarId, vars_uses, uses, Reference);
       });
 
 #undef PROCESS_UPDATE_DIFF
@@ -1031,7 +1031,7 @@ TEST_SUITE("query") {
         ->callers.push_back(IndexFuncRef{Range(Position(2, 0)), IndexFuncId(0),
                                          SymbolRole::None});
     previous.Resolve(previous.ToVarId(HashUsr("usr3")))
-        ->uses.push_back(Range(Position(3, 0)));
+        ->uses.push_back(Reference{Range(Position(3, 0))});
 
     IndexUpdate update = GetDelta(previous, current);
 
diff --git a/src/query.h b/src/query.h
index 727a181f..d584c383 100644
--- a/src/query.h
+++ b/src/query.h
@@ -34,6 +34,10 @@ struct QueryLocation {
   bool HasValue() const { return range.HasValue(); }
   QueryFileId FileId() const { return path; }
 
+  operator Reference() const {
+    return Reference{range, Id<void>(path), SymbolKind::File, role};
+  }
+
   std::tuple<Range, QueryFileId, SymbolRole> ToTuple() const {
     return std::make_tuple(range, path, role);
   }
@@ -246,14 +250,14 @@ struct QueryFunc {
                                     QueryFuncRef,
                                     QueryLocation>;
   using DefUpdate = WithUsr<Def>;
-  using DeclarationsUpdate = MergeableUpdate<QueryFuncId, QueryLocation>;
+  using DeclarationsUpdate = MergeableUpdate<QueryFuncId, Reference>;
   using DerivedUpdate = MergeableUpdate<QueryFuncId, QueryFuncId>;
   using CallersUpdate = MergeableUpdate<QueryFuncId, QueryFuncRef>;
 
   Usr usr;
   Maybe<Id<void>> symbol_idx;
   optional<Def> def;
-  std::vector<QueryLocation> declarations;
+  std::vector<Reference> declarations;
   std::vector<QueryFuncId> derived;
   std::vector<QueryFuncRef> callers;
 
@@ -267,14 +271,14 @@ struct QueryVar {
                                    QueryVarId,
                                    QueryLocation>;
   using DefUpdate = WithUsr<Def>;
-  using DeclarationsUpdate = MergeableUpdate<QueryVarId, QueryLocation>;
-  using UsesUpdate = MergeableUpdate<QueryVarId, QueryLocation>;
+  using DeclarationsUpdate = MergeableUpdate<QueryVarId, Reference>;
+  using UsesUpdate = MergeableUpdate<QueryVarId, Reference>;
 
   Usr usr;
   Maybe<Id<void>> symbol_idx;
   optional<Def> def;
-  std::vector<QueryLocation> declarations;
-  std::vector<QueryLocation> uses;
+  std::vector<Reference> declarations;
+  std::vector<Reference> uses;
 
   explicit QueryVar(const Usr& usr) : usr(usr) {}
 };
@@ -400,9 +404,9 @@ template <> struct IndexToQuery<IndexFuncId> { using type = QueryFuncId; };
 template <> struct IndexToQuery<IndexTypeId> { using type = QueryTypeId; };
 template <> struct IndexToQuery<IndexVarId> { using type = QueryVarId; };
 template <> struct IndexToQuery<IndexFuncRef> { using type = QueryFuncRef; };
-template <> struct IndexToQuery<Range> { using type = QueryLocation; };
+template <> struct IndexToQuery<Range> { using type = Reference; };
 template <> struct IndexToQuery<Reference> { using type = Reference; };
-template <> struct IndexToQuery<IndexFunc::Declaration> { using type = QueryLocation; };
+template <> struct IndexToQuery<IndexFunc::Declaration> { using type = Reference; };
 template <typename I> struct IndexToQuery<optional<I>> {
   using type = optional<typename IndexToQuery<I>::type>;
 };
@@ -425,7 +429,7 @@ struct IdMap {
   QueryFuncId ToQuery(IndexFuncId id) const;
   QueryVarId ToQuery(IndexVarId id) const;
   QueryFuncRef ToQuery(IndexFuncRef ref) const;
-  QueryLocation ToQuery(IndexFunc::Declaration decl) const;
+  Reference ToQuery(IndexFunc::Declaration decl) const;
   template <typename I>
   Maybe<typename IndexToQuery<I>::type> ToQuery(Maybe<I> id) const {
     if (!id)
@@ -440,7 +444,7 @@ struct IdMap {
       ret.push_back(ToQuery(x));
     return ret;
   }
-  std::vector<QueryLocation> ToQuery(const std::vector<Range>& a) const;
+  std::vector<Reference> ToQuery(const std::vector<Range>& a) const;
   // clang-format on
 
   SymbolIdx ToSymbol(IndexTypeId id) const;
diff --git a/src/query_utils.cc b/src/query_utils.cc
index 0fe25733..7d79d274 100644
--- a/src/query_utils.cc
+++ b/src/query_utils.cc
@@ -28,36 +28,36 @@ std::vector<QueryLocation> ToQueryLocationHelper(
   return locs;
 }
 
+}  // namespace
+
 QueryFileId GetFileId(QueryDatabase* db, Reference ref) {
   switch (ref.lex_parent_kind) {
-    case SymbolKind::Invalid:
-      break;
-    case SymbolKind::File:
-      return QueryFileId(ref.lex_parent_id);
-    case SymbolKind::Func: {
-      QueryFunc& file = db->funcs[ref.lex_parent_id.id];
-      if (file.def)
-        return file.def->file;
-      break;
-    }
-    case SymbolKind::Type: {
-      QueryType& type = db->types[ref.lex_parent_id.id];
-      if (type.def)
-        return type.def->file;
-      break;
-    }
-    case SymbolKind::Var: {
-      QueryVar& var = db->vars[ref.lex_parent_id.id];
-      if (var.def)
-        return var.def->file;
-      break;
-    }
+  case SymbolKind::Invalid:
+    break;
+  case SymbolKind::File:
+    return QueryFileId(ref.lex_parent_id);
+  case SymbolKind::Func: {
+    QueryFunc& file = db->funcs[ref.lex_parent_id.id];
+    if (file.def)
+      return file.def->file;
+    break;
+  }
+  case SymbolKind::Type: {
+    QueryType& type = db->types[ref.lex_parent_id.id];
+    if (type.def)
+      return type.def->file;
+    break;
+  }
+  case SymbolKind::Var: {
+    QueryVar& var = db->vars[ref.lex_parent_id.id];
+    if (var.def)
+      return var.def->file;
+    break;
+  }
   }
   return QueryFileId();
 }
 
-}  // namespace
-
 optional<QueryLocation> GetDefinitionSpellingOfSymbol(QueryDatabase* db,
                                                       const QueryTypeId& id) {
   QueryType& type = db->types[id.id];
@@ -157,7 +157,7 @@ optional<QueryFileId> GetDeclarationFileForSymbol(QueryDatabase* db,
     case SymbolKind::Func: {
       QueryFunc& func = db->funcs[symbol.idx];
       if (!func.declarations.empty())
-        return func.declarations[0].FileId();
+        return GetFileId(db, func.declarations[0]);
       if (func.def && func.def->definition_spelling)
         return func.def->definition_spelling->FileId();
       break;
@@ -183,6 +183,16 @@ QueryLocation ToQueryLocation(QueryDatabase* db, Reference ref) {
   return QueryLocation{ref.range, GetFileId(db, ref), ref.role};
 }
 
+std::vector<Reference> ToReference(QueryDatabase* db,
+                                   const std::vector<QueryFuncRef>& refs) {
+  std::vector<Reference> ret;
+  ret.reserve(refs.size());
+  for (auto& ref : refs)
+    ret.push_back(Reference{ref.loc.range, Id<void>(ref.id_), SymbolKind::Func,
+                            ref.loc.role});
+  return ret;
+}
+
 std::vector<QueryLocation> ToQueryLocation(
     QueryDatabase* db,
     const std::vector<QueryFuncRef>& refs) {
@@ -208,16 +218,13 @@ std::vector<QueryLocation> ToQueryLocation(
   return ToQueryLocationHelper(db, ids);
 }
 
-std::vector<QueryLocation> GetUsesOfSymbol(QueryDatabase* db,
-                                           const SymbolIdx& symbol,
-                                           bool include_decl) {
+std::vector<Reference> GetUsesOfSymbol(QueryDatabase* db,
+                                       const SymbolIdx& symbol,
+                                       bool include_decl) {
   switch (symbol.kind) {
     case SymbolKind::Type: {
       QueryType& type = db->types[symbol.idx];
-      std::vector<QueryLocation> ret;
-      ret.reserve(type.uses.size());
-      for (auto& x : type.uses)
-        ret.push_back(ToQueryLocation(db, x));
+      std::vector<Reference> ret = type.uses;
       if (include_decl && type.def && type.def->definition_spelling)
         ret.push_back(*type.def->definition_spelling);
       return ret;
@@ -225,17 +232,17 @@ std::vector<QueryLocation> GetUsesOfSymbol(QueryDatabase* db,
     case SymbolKind::Func: {
       // TODO: the vector allocation could be avoided.
       QueryFunc& func = db->funcs[symbol.idx];
-      std::vector<QueryLocation> result = ToQueryLocation(db, func.callers);
+      std::vector<Reference> ret = ToReference(db, func.callers);
       if (include_decl) {
-        AddRange(&result, func.declarations);
+        AddRange(&ret, func.declarations);
         if (func.def && func.def->definition_spelling)
-          result.push_back(*func.def->definition_spelling);
+          ret.push_back(*func.def->definition_spelling);
       }
-      return result;
+      return ret;
     }
     case SymbolKind::Var: {
       QueryVar& var = db->vars[symbol.idx];
-      std::vector<QueryLocation> ret = var.uses;
+      std::vector<Reference> ret = var.uses;
       if (include_decl) {
         if (var.def && var.def->definition_spelling)
           ret.push_back(*var.def->definition_spelling);
@@ -246,15 +253,14 @@ std::vector<QueryLocation> GetUsesOfSymbol(QueryDatabase* db,
     case SymbolKind::File:
     case SymbolKind::Invalid: {
       assert(false && "unexpected");
-      break;
+      return {};
     }
   }
-  return {};
 }
 
-std::vector<QueryLocation> GetDeclarationsOfSymbolForGotoDefinition(
+std::vector<Reference> GetDeclarationsOfSymbolForGotoDefinition(
     QueryDatabase* db,
-    const SymbolIdx& symbol) {
+    SymbolIdx symbol) {
   switch (symbol.kind) {
     case SymbolKind::Type: {
       // Returning the definition spelling of a type is a hack (and is why the
@@ -265,17 +271,14 @@ std::vector<QueryLocation> GetDeclarationsOfSymbolForGotoDefinition(
       if (type.def) {
         optional<QueryLocation> declaration = type.def->definition_spelling;
         if (declaration)
-          return {*declaration};
+          return {Reference(*declaration)};
       }
       break;
     }
-    case SymbolKind::Func: {
-      QueryFunc& func = db->funcs[symbol.idx];
-      return func.declarations;
-    }
-    case SymbolKind::Var: {
+    case SymbolKind::Func:
+      return db->funcs[symbol.idx].declarations;
+    case SymbolKind::Var:
       return db->vars[symbol.idx].declarations;
-    }
     default:
       break;
   }
@@ -434,11 +437,11 @@ lsDocumentUri GetLsDocumentUri(QueryDatabase* db, QueryFileId file_id) {
 
 optional<lsLocation> GetLsLocation(QueryDatabase* db,
                                    WorkingFiles* working_files,
-                                   const QueryLocation& location) {
+                                   Reference ref) {
   std::string path;
-  lsDocumentUri uri = GetLsDocumentUri(db, location.FileId(), &path);
+  lsDocumentUri uri = GetLsDocumentUri(db, GetFileId(db, ref), &path);
   optional<lsRange> range =
-      GetLsRange(working_files->GetFileByFilename(path), location.range);
+      GetLsRange(working_files->GetFileByFilename(path), ref.range);
   if (!range)
     return nullopt;
   return lsLocation(uri, *range);
diff --git a/src/query_utils.h b/src/query_utils.h
index 6c2d4ad8..09a04c7d 100644
--- a/src/query_utils.h
+++ b/src/query_utils.h
@@ -21,6 +21,10 @@ optional<QueryFileId> GetDeclarationFileForSymbol(QueryDatabase* db,
                                                   const SymbolIdx& symbol);
 
 QueryLocation ToQueryLocation(QueryDatabase* db, Reference ref);
+QueryFileId GetFileId(QueryDatabase* db, Reference ref);
+
+std::vector<Reference> ToReference(QueryDatabase* db,
+                                   const std::vector<QueryFuncRef>& refs);
 std::vector<QueryLocation> ToQueryLocation(
     QueryDatabase* db,
     const std::vector<QueryFuncRef>& refs);
@@ -32,12 +36,12 @@ std::vector<QueryLocation> ToQueryLocation(
     const std::vector<QueryVarId>& refs);
 std::vector<QueryLocation> ToQueryLocation(QueryDatabase* db,
                                            const std::vector<QueryFuncId>& ids);
-std::vector<QueryLocation> GetUsesOfSymbol(QueryDatabase* db,
-                                           const SymbolIdx& symbol,
-                                           bool include_decl);
-std::vector<QueryLocation> GetDeclarationsOfSymbolForGotoDefinition(
+std::vector<Reference> GetUsesOfSymbol(QueryDatabase* db,
+                                       const SymbolIdx& symbol,
+                                       bool include_decl);
+std::vector<Reference> GetDeclarationsOfSymbolForGotoDefinition(
     QueryDatabase* db,
-    const SymbolIdx& symbol);
+    SymbolIdx symbol);
 
 bool HasCallersOnSelfOrBaseOrDerived(QueryDatabase* db, QueryFunc& root);
 std::vector<QueryFuncRef> GetCallersForAllBaseFunctions(QueryDatabase* db,
@@ -51,9 +55,10 @@ lsDocumentUri GetLsDocumentUri(QueryDatabase* db,
                                QueryFileId file_id,
                                std::string* path);
 lsDocumentUri GetLsDocumentUri(QueryDatabase* db, QueryFileId file_id);
+
 optional<lsLocation> GetLsLocation(QueryDatabase* db,
                                    WorkingFiles* working_files,
-                                   const QueryLocation& location);
+                                   Reference location);
 std::vector<lsLocation> GetLsLocations(
     QueryDatabase* db,
     WorkingFiles* working_files,