Delete method.{cc,h}
Rename $ccls/setSkippedRanges to $ccls/publishSkippedRanges
Rename $ccls/publishSemanticHighlighting to $ccls/publishSemanticHighlight; stableId -> id
* Fix additionalTextEdits -> textEdit hack for VS Code
Visual Studio Code filters the completion result according to
textEdit.range and filterText, if the textEdit.range overlaps with
existing text, we have to include it in filterText, otherwise it would
be filtered out.
* Fix has_open_paren in FilterCandidates
blacklist some undesired candidates
additionalTextEdits if clang>=7
Use CodePatterns for preprocessor directive completion if there is a #
Prefer textEdit over insertText
Move using below #include to make preamble happy
textDocument/references: if no references, first line or last line => list where this file is included
malloc_trim() only if files have been indexed in last cycle
Intern: use CachedHashStringRef
