Rename Max to NumElements

Author: YexuanXiao

clang/include/clang/AST/ASTContext.h

@@ -278,8 +278,8 @@ class ASTContext : public RefCountedBase<ASTContext> {
       ArrayParameterTypes;
 
   /// Store the unique Type corresponding to each Kind.
-  mutable std::array<Type *,
-                     llvm::to_underlying(PredefinedSugarType::Kind::Max)>
+  mutable std::array<Type *, llvm::to_underlying(
+                                 PredefinedSugarType::Kind::NumElements)>
       PredefinedSugarTypes{};
 
   /// The set of nested name specifiers.

clang/include/clang/AST/Type.h

@@ -2269,7 +2269,7 @@ class alignas(TypeAlignment) Type : public ExtQualsTypeCommonBase {
     PtrdiffT,
 
     // Indicates how many items the enum has.
-    Max
+    NumElements
   };
 
   class PresefinedSugarTypeBitfields {