[clang] [Clang][AST] Store injected template arguments in TemplateParameterList (PR #113579)

[Krystian Stasiowski via cfe-commits]

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@@ -244,6 +245,17 @@ bool TemplateParameterList::hasAssociatedConstraints() const {
   return HasRequiresClause || HasConstrainedParameters;
 }
 
+ArrayRef<TemplateArgument> TemplateParameterList::getInjectedTemplateArgs() {
+  if (const auto *Context = InjectedArgs.dyn_cast<const ASTContext *>()) {
+    TemplateArgument *Args = new (*Context) TemplateArgument[size()];
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sdkrystian wrote:

@erichkeane The allocation function uses `ASTContext` to allocate the memory (it uses a `BumpPtrAllocator`, so we don't need to deallocate). 

https://github.com/llvm/llvm-project/pull/113579