[clang][NFC] Refactor `TagTypeKind` (#71160)

This patch converts TagTypeKind into scoped enum. Among other benefits,
this allows us to forward-declare it where necessary.

1 files changed, 14 insertions, 13 deletions

diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index adb82d3..3355336 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1576,8 +1576,9 @@ bool ResultBuilder::IsClassOrStruct(const NamedDecl *ND) const {
 
   // For purposes of this check, interfaces match too.
   if (const auto *RD = dyn_cast<RecordDecl>(ND))
-    return RD->getTagKind() == TTK_Class || RD->getTagKind() == TTK_Struct ||
-           RD->getTagKind() == TTK_Interface;
+    return RD->getTagKind() == TagTypeKind::Class ||
+           RD->getTagKind() == TagTypeKind::Struct ||
+           RD->getTagKind() == TagTypeKind::Interface;
 
   return false;
 }
@@ -1589,7 +1590,7 @@ bool ResultBuilder::IsUnion(const NamedDecl *ND) const {
     ND = ClassTemplate->getTemplatedDecl();
 
   if (const auto *RD = dyn_cast<RecordDecl>(ND))
-    return RD->getTagKind() == TTK_Union;
+    return RD->getTagKind() == TagTypeKind::Union;
 
   return false;
 }
@@ -2018,15 +2019,15 @@ static const char *GetCompletionTypeString(QualType T, ASTContext &Context,
       if (TagDecl *Tag = TagT->getDecl())
         if (!Tag->hasNameForLinkage()) {
           switch (Tag->getTagKind()) {
-          case TTK_Struct:
+          case TagTypeKind::Struct:
             return "struct <anonymous>";
-          case TTK_Interface:
+          case TagTypeKind::Interface:
             return "__interface <anonymous>";
-          case TTK_Class:
+          case TagTypeKind::Class:
             return "class <anonymous>";
-          case TTK_Union:
+          case TagTypeKind::Union:
             return "union <anonymous>";
-          case TTK_Enum:
+          case TagTypeKind::Enum:
             return "enum <anonymous>";
           }
         }
@@ -4167,14 +4168,14 @@ CXCursorKind clang::getCursorKindForDecl(const Decl *D) {
   default:
     if (const auto *TD = dyn_cast<TagDecl>(D)) {
       switch (TD->getTagKind()) {
-      case TTK_Interface: // fall through
-      case TTK_Struct:
+      case TagTypeKind::Interface: // fall through
+      case TagTypeKind::Struct:
         return CXCursor_StructDecl;
-      case TTK_Class:
+      case TagTypeKind::Class:
         return CXCursor_ClassDecl;
-      case TTK_Union:
+      case TagTypeKind::Union:
         return CXCursor_UnionDecl;
-      case TTK_Enum:
+      case TagTypeKind::Enum:
         return CXCursor_EnumDecl;
       }
     }