[clang] [Clang] Fix concept paramater mapping and caching (PR #161994)

[Younan Zhang via cfe-commits]

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@@ -264,14 +264,6 @@ class HashParameterMapping : public RecursiveASTVisitor<HashParameterMapping> {
 
   UnsignedOrNone OuterPackSubstIndex;
 
-  TemplateArgument getPackSubstitutedTemplateArgument(TemplateArgument Arg) {
-    assert(*SemaRef.ArgPackSubstIndex < Arg.pack_size());
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zyn0217 wrote:

It's still there, which is guaranteed by ArrayRef.


https://github.com/llvm/llvm-project/pull/161994