Merge pull request #16372 from bob-wilson/fix-typerefs

[Reflection] Remove DEPENDENT_TEMPLATE2 macro

Author: bob-wilson

include/swift/Reflection/TypeRef.h

@@ -40,33 +40,20 @@ enum class TypeRefKind {
 
 // MSVC reports an error if we use "template"
 // Clang reports an error if we don't use "template"
-#if defined(__APPLE_CC__)
+#if defined(__clang__) || defined(__GNUC__)
 #  define DEPENDENT_TEMPLATE template
-#  if __APPLE_CC__ >= 7000
-#    define DEPENDENT_TEMPLATE2
-#  else
-#    define DEPENDENT_TEMPLATE2 template
-#  endif
-#elif defined(__clang__) || defined(__GNUC__)
-#  define DEPENDENT_TEMPLATE template
-#  if __clang_major__ >= 7
-#    define DEPENDENT_TEMPLATE2
-#  else
-#    define DEPENDENT_TEMPLATE2 template
-#  endif
 #else
-#  define DEPENDENT_TEMPLATE template
-#  define DEPENDENT_TEMPLATE2
+#  define DEPENDENT_TEMPLATE
 #endif
 
 #define FIND_OR_CREATE_TYPEREF(Allocator, TypeRefTy, ...)                      \
   auto ID = Profile(__VA_ARGS__);                                              \
-  const auto Entry = Allocator.DEPENDENT_TEMPLATE2 TypeRefTy##s.find(ID);      \
-  if (Entry != Allocator.DEPENDENT_TEMPLATE2 TypeRefTy##s.end())               \
+  const auto Entry = Allocator.TypeRefTy##s.find(ID);      \
+  if (Entry != Allocator.TypeRefTy##s.end())               \
     return Entry->second;                                                      \
   const auto TR =                                                              \
       Allocator.DEPENDENT_TEMPLATE makeTypeRef<TypeRefTy>(__VA_ARGS__);        \
-  Allocator.DEPENDENT_TEMPLATE2 TypeRefTy##s.insert({ID, TR});                 \
+  Allocator.TypeRefTy##s.insert({ID, TR});                 \
   return TR;
 
 /// An identifier containing the unique bit pattern made up of all of the