[compiler-rt] [ASan] Mark recent integration tests as accordingly for MSVC (PR #135889)

[MacGyver Codilla via llvm-commits]

https://github.com/39otsu created https://github.com/llvm/llvm-project/pull/135889

Both of these tests will cause an unsuccessful pass when using msvc.

`shadowed-stack-serialization.cpp` - XFAIL due to the metadata not being generated.
`fakeframe-right-redzone.cpp` - UNSUPPORTED due to the optimization limitations of the msvc compiler.

>From 43fb37edf6be4736ab847d5edb6975059417d23c Mon Sep 17 00:00:00 2001
From: 39otsu <mccodi11 at gmail.com>
Date: Tue, 15 Apr 2025 17:25:16 -0700
Subject: [PATCH 1/2] Marked as UNSUPPORTED

---
 compiler-rt/test/asan/TestCases/fakeframe-right-redzone.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/compiler-rt/test/asan/TestCases/fakeframe-right-redzone.cpp b/compiler-rt/test/asan/TestCases/fakeframe-right-redzone.cpp
index da1f5f2fb9789..6dd4bdaa02773 100644
--- a/compiler-rt/test/asan/TestCases/fakeframe-right-redzone.cpp
+++ b/compiler-rt/test/asan/TestCases/fakeframe-right-redzone.cpp
@@ -1,5 +1,6 @@
 // RUN: %clangxx_asan -O0 %s -o %t && %env_asan_opts=detect_stack_use_after_return=1 not %run %t 2>&1 | FileCheck %s
 // RUN: %clangxx_asan -O0 %s -o %t -fsanitize-address-use-after-return=always && not %run %t 2>&1 | FileCheck %s
+// UNSUPPORTED: MSVC
 
 #include "defines.h"
 #include <stdint.h>

>From 8713670d8dcf34fadea138f541372a974eee2c9c Mon Sep 17 00:00:00 2001
From: 39otsu <mccodi11 at gmail.com>
Date: Tue, 15 Apr 2025 17:25:33 -0700
Subject: [PATCH 2/2] Marked as XFAIL

---
 .../test/asan/TestCases/shadowed-stack-serialization.cpp        | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/compiler-rt/test/asan/TestCases/shadowed-stack-serialization.cpp b/compiler-rt/test/asan/TestCases/shadowed-stack-serialization.cpp
index 4018c097aed5a..6a88c3c9ea9be 100644
--- a/compiler-rt/test/asan/TestCases/shadowed-stack-serialization.cpp
+++ b/compiler-rt/test/asan/TestCases/shadowed-stack-serialization.cpp
@@ -1,5 +1,7 @@
 // RUN: %clangxx_asan -O0 %s -o %t
 // RUN: not %run %t 2>&1 | FileCheck %s
+// MSVC marks this as xfail because it doesn't generate the metadata to display the variable's location in source.
+// XFAIL: msvc
 
 int main() {
   int x;