Update tests to use %clang instead of 'clang', and forcibly disable use of '
clang ' or ' clang -cc1 ' or ' clang-cc ' in test lines (by substituting them to
garbage).

llvm-svn: 91460
diff --git a/clang/test/Driver/clang_cpp.c b/clang/test/Driver/clang_cpp.c
index 8638465..79b2f55 100644
--- a/clang/test/Driver/clang_cpp.c
+++ b/clang/test/Driver/clang_cpp.c
@@ -1,4 +1,4 @@
 // Verify that -include isn't included twice with -save-temps.
-// RUN: clang -S -o - %s -include %t.h -save-temps -### 2> %t.log
+// RUN: %clang -S -o - %s -include %t.h -save-temps -### 2> %t.log
 // RUN: grep '"-include' %t.log | count 1