ccls/tests/usage/func_usage_class_inline_var_def.cc

static int helper() {
  return 5;
}

class Foo {
  int x = helper();
};

// TODO(libclang): libclang doesn't expose the |helper| reference in the ast,
//                 so we can't add the |helper| usage.

// TODO: Remove "id" 1 output

/*
OUTPUT:
{
  "types": [{
      "id": 0,
      "usr": "c:@S@Foo",
      "short_name": "Foo",
      "qualified_name": "Foo",
      "definition": "tests/usage/func_usage_class_inline_var_def.cc:5:7",
      "vars": [0]
    }, {
      "id": 1
    }],
  "functions": [{
      "id": 0,
      "usr": "c:func_usage_class_inline_var_def.cc@F@helper#",
      "short_name": "helper",
      "qualified_name": "helper",
      "definition": "tests/usage/func_usage_class_inline_var_def.cc:1:12"
    }],
  "variables": [{
      "id": 0,
      "usr": "c:@S@Foo@FI@x",
      "short_name": "x",
      "qualified_name": "Foo::x",
      "declaration": "tests/usage/func_usage_class_inline_var_def.cc:6:7",
      "initializations": ["tests/usage/func_usage_class_inline_var_def.cc:6:7"],
      "variable_type": 1,
      "declaring_type": 0
    }]
}
*/