[clangd] Update the CompletionItemKind.

Summary: Fix some FIXMEs.

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74609

Author: hokein

clang-tools-extra/clangd/CodeComplete.cpp

@@ -87,9 +87,8 @@ CompletionItemKind toCompletionItemKind(index::SymbolKind Kind) {
     return CompletionItemKind::Text;
   case SK::Enum:
     return CompletionItemKind::Enum;
-  // FIXME(ioeric): use LSP struct instead of class when it is suppoted in the
-  // protocol.
   case SK::Struct:
+    return CompletionItemKind::Struct;
   case SK::Class:
   case SK::Protocol:
   case SK::Extension:
@@ -102,8 +101,6 @@ CompletionItemKind toCompletionItemKind(index::SymbolKind Kind) {
   case SK::Using:
     return CompletionItemKind::Reference;
   case SK::Function:
-  // FIXME(ioeric): this should probably be an operator. This should be fixed
-  // when `Operator` is support type in the protocol.
   case SK::ConversionFunction:
     return CompletionItemKind::Function;
   case SK::Variable:
@@ -112,9 +109,8 @@ CompletionItemKind toCompletionItemKind(index::SymbolKind Kind) {
     return CompletionItemKind::Variable;
   case SK::Field:
     return CompletionItemKind::Field;
-  // FIXME(ioeric): use LSP enum constant when it is supported in the protocol.
   case SK::EnumConstant:
-    return CompletionItemKind::Value;
+    return CompletionItemKind::EnumMember;
   case SK::InstanceMethod:
   case SK::ClassMethod:
   case SK::StaticMethod:

clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp

@@ -481,7 +481,7 @@ TEST(CompletionTest, Kinds) {
               AllOf(Has("function", CompletionItemKind::Function),
                     Has("variable", CompletionItemKind::Variable),
                     Has("int", CompletionItemKind::Keyword),
-                    Has("Struct", CompletionItemKind::Class),
+                    Has("Struct", CompletionItemKind::Struct),
                     Has("MACRO", CompletionItemKind::Text),
                     Has("indexFunction", CompletionItemKind::Function),
                     Has("indexVariable", CompletionItemKind::Variable),
@@ -529,6 +529,17 @@ TEST(CompletionTest, Kinds) {
           AllOf(Named("complete_variable"), Kind(CompletionItemKind::Variable)),
           AllOf(Named("complete_static_member"),
                 Kind(CompletionItemKind::Property))));
+
+   Results = completions(
+      R"cpp(
+        enum Color {
+          Red
+        };
+        Color u = ^
+      )cpp");
+   EXPECT_THAT(Results.Completions,
+               Contains(
+                   AllOf(Named("Red"), Kind(CompletionItemKind::EnumMember))));
 }
 
 TEST(CompletionTest, NoDuplicates) {