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/Sema/wchar.c b/clang/test/Sema/wchar.c
index ed6649a..edec2b3 100644
--- a/clang/test/Sema/wchar.c
+++ b/clang/test/Sema/wchar.c
@@ -1,5 +1,5 @@
-// RUN: clang %s -fsyntax-only -Xclang -verify
-// RUN: clang %s -fsyntax-only -fshort-wchar -Xclang -verify -DSHORT_WCHAR
+// RUN: %clang %s -fsyntax-only -Xclang -verify
+// RUN: %clang %s -fsyntax-only -fshort-wchar -Xclang -verify -DSHORT_WCHAR
 
 typedef __WCHAR_TYPE__ wchar_t;