aaron.ballman added inline comments.

================
Comment at: clang/include/clang/AST/Type.h:1972-1973
+  /// Check if this is a WebAssembly Reference Type.
+  bool isWebAssemblyReferenceType() const;
+  bool isWebAssemblyExternrefType() const;
   /// Determines if this is a sizeless type supported by the
----------------
pmatos wrote:
> aaron.ballman wrote:
> > It's unfortunate to name this with `ReferenceType` given that we already 
> > have a considerable number of APIs that assume "reference type" to mean `&` 
> > or `&&`. We run into similar problems with "pointer type" and objective-c 
> > pointers.
> > 
> > Basically, I worry we're setting ourselves up for another 
> > `isObjCObjectPointerType()`/`isPointerType()` situation.
> I understand this concern. However, unsure what else to call it given that's 
> what it is. It's a WebAssembly Reference Type, which indeed is different from 
> a C/C++ ReferenceType. Could call it OpaqueType but that would be even worse. 
> Not only it's not called an opaque type in Wasm, it's also not what LLVM 
> users will think of as Opaque Types.
Yeah, I think this is as good of a name as we're likely to find; I certainly 
haven't thought of something better. If we do think of something later, we can 
refactor then.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122215/new/

https://reviews.llvm.org/D122215

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