[clang] [Clang] Only compare template params of potential overload after checking their decl context (PR #78139)

[via cfe-commits]

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@@ -24,11 +24,6 @@ class Y {
   void k() &&; // expected-error{{cannot overload a member function with ref-qualifier '&&' with a member function without a ref-qualifier}}
 };
 
-struct GH76358 {
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cor3ntin wrote:

Completely accidental, i did not notice...

https://github.com/llvm/llvm-project/pull/78139