Convert Preprocessor Clang tests to FileCheck in regards to PR5307.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85199 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/comment_save_macro.c b/test/Preprocessor/comment_save_macro.c
index 66b59d1..06066d2 100644
--- a/test/Preprocessor/comment_save_macro.c
+++ b/test/Preprocessor/comment_save_macro.c
@@ -1,6 +1,11 @@
-// RUN: clang-cc -E -C %s | grep '^boo bork bar // zot$' &&
-// RUN: clang-cc -E -CC %s | grep -F '^boo bork /* blah*/ bar // zot$' &&
-// RUN: clang-cc -E %s | grep '^boo bork bar$'
+// RUN: clang-cc -E -C %s | FileCheck -strict-whitespace %s
+// CHECK: boo bork bar // zot
+
+// RUN: clang-cc -E -CC %s | FileCheck -strict-whitespace %s
+// CHECK: boo bork /* blah*/ bar // zot
+
+// RUN: clang-cc -E %s | FileCheck -strict-whitespace %s
+// CHECK: boo bork bar
 
 
 #define FOO bork // blah