[llvm] removed duplicate test cases for name demangling (PR #167202)

[via llvm-commits]

https://github.com/DCoderLT created https://github.com/llvm/llvm-project/pull/167202

This PR removes a few MSVC name demangling test cases that seem to be duplicated, as mentioned in issue https://github.com/llvm/llvm-project/issues/156804 .

>From d700560fb9fcd21c1b2c1eb23d2f6b18ea1e8808 Mon Sep 17 00:00:00 2001
From: DCoderLT <dcoder1337 at gmail.com>
Date: Sun, 9 Nov 2025 08:41:10 +0200
Subject: [PATCH] removed duplicate test cases for name demangling

---
 llvm/test/Demangle/ms-arg-qualifiers.test | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/llvm/test/Demangle/ms-arg-qualifiers.test b/llvm/test/Demangle/ms-arg-qualifiers.test
index a5998d282716d..642156294ba9b 100644
--- a/llvm/test/Demangle/ms-arg-qualifiers.test
+++ b/llvm/test/Demangle/ms-arg-qualifiers.test
@@ -163,18 +163,12 @@
 ?foo_qay144cbh@@YAX$$QEAY144$$CBH at Z
 ; CHECK: void __cdecl foo_qay144cbh(int const (&&)[5][5])
 
-?foo_p6ahxz@@YAXP6AHXZ at Z
-; CHECK: void __cdecl foo_p6ahxz(int (__cdecl *)(void))
 ?foo_p6ahxz@@YAXP6AHXZ at Z
 ; CHECK: void __cdecl foo_p6ahxz(int (__cdecl *)(void))
 
-?foo_a6ahxz@@YAXA6AHXZ at Z
-; CHECK: void __cdecl foo_a6ahxz(int (__cdecl &)(void))
 ?foo_a6ahxz@@YAXA6AHXZ at Z
 ; CHECK: void __cdecl foo_a6ahxz(int (__cdecl &)(void))
 
-?foo_q6ahxz@@YAX$$Q6AHXZ at Z
-; CHECK: void __cdecl foo_q6ahxz(int (__cdecl &&)(void))
 ?foo_q6ahxz@@YAX$$Q6AHXZ at Z
 ; CHECK: void __cdecl foo_q6ahxz(int (__cdecl &&)(void))
 
@@ -262,8 +256,6 @@
 ; Pointer to function types don't backref with function types
 ?mangle_no_backref2@@YAXP6AXXZP6AXXZ at Z
 ; CHECK: void __cdecl mangle_no_backref2(void (__cdecl *)(void), void (__cdecl *)(void))
-?mangle_no_backref2@@YAXP6AXXZP6AXXZ at Z
-; CHECK: void __cdecl mangle_no_backref2(void (__cdecl *)(void), void (__cdecl *)(void))
 
 ?mangle_yes_backref0@@YAXQAH0 at Z
 ; CHECK: void __cdecl mangle_yes_backref0(int *const, int *const)