message: CXCursor_OverloadCandidate is lsCompletionItemKind::Text
  See clang/test/Index for some OverloadCandidate cases, they all start with Text.
diff: @@ -134,6 +134,7 @@ lsCompletionItemKind GetCompletionKind(CXCursorKind cursor_kind) {
  // return lsCompletionItemKind::File;
  case CXCursor_NotImplemented:
  + case CXCursor_OverloadCandidate:
  return lsCompletionItemKind::Text;
  case CXCursor_EnumConstantDecl:
  