[clang] [Clang][Sema] Fix issue on requires expression with templated base class member function (PR #85198)

[Erich Keane via cfe-commits]

================
@@ -7735,7 +7735,8 @@ ExprResult Sema::BuildResolvedCallExpr(Expr *Fn, NamedDecl *NDecl,
   }
 
   if (CXXMethodDecl *Method = dyn_cast_or_null<CXXMethodDecl>(FDecl))
-    if (Method->isImplicitObjectMemberFunction())
+    if (!isa<RequiresExprBodyDecl>(CurContext) &&
----------------
erichkeane wrote:

I guess I don't see how 'implicit object member function' is what we want there?  It seems what we really want is 'in the context of a requires clause', right?

https://github.com/llvm/llvm-project/pull/85198