[clang] Update remaining tests for usage of CLANG_RESOURCE_DIR (PR #202475)

[Yaxun Liu via cfe-commits]

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@@ -5,10 +5,10 @@
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 // RUN:   -iprefix %t.tmps/ -iwithprefix second \
 // RUN:    -isystem %t.tmps/first -v %s 2> %t.out
-// RUN: FileCheck %s < %t.out
+// RUN: FileCheck %s -DRESOURCE_DIR=%clang-resource-dir < %t.out
 
 // CHECK: #include <...> search starts here:
 // CHECK: {{.*}}.tmps/first
-// CHECK: {{/|\\}}clang{{/|\\}}{{[.0-9]+}}{{/|\\}}include
+// CHECK: [[RESOURCE_DIR]]{{[\/]}}include
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yxsamliu wrote:

This separator pattern only matches `/`. Since this test can run on Windows too, should this keep accepting both `/` and `\`?

https://github.com/llvm/llvm-project/pull/202475