Make test more lenient for custom clang version strings

The version string can be anything, don't restrict it to digits and
dots. It's derived from the resource dir, so just check for that.

Author: d0k

clang/test/Driver/darwin-embedded-search-paths.c

@@ -33,11 +33,12 @@
 // the cc1 arguments.
 
 // CC1: "-cc1"
+// CC1: "-resource-dir" "[[RESOURCE_DIR:[^"]*]]"
 // NO-CXX-NOT: "-internal-isystem" "{{.*}}/include/c++/v1"
 // CXX-SAME: "-internal-isystem" "{{.*}}/include/c++/v1"
 // ULI-SAME: "-internal-isystem" "[[SDKROOT]]/usr/local/include"
 // EULI-SAME: "-isystem" "[[SDKROOT]]/embedded/usr/local/include"
-// CI-SAME: "-internal-isystem" "{{.*}}/clang/{{[[:digit:].]*}}/include"
+// CI-SAME: "-internal-isystem" "[[RESOURCE_DIR]]/include"
 // UI-SAME: "-internal-externc-isystem" "[[SDKROOT]]/usr/include"
 // EUI-SAME: "-internal-externc-isystem" "[[SDKROOT]]/embedded/usr/include"
 // NO-FW-NOT: "-internal-iframework"