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/CodeGenObjC/attr-strong.c b/clang/test/CodeGenObjC/attr-strong.c
index ca83334..f1474bc 100644
--- a/clang/test/CodeGenObjC/attr-strong.c
+++ b/clang/test/CodeGenObjC/attr-strong.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm -S -o %t %s
+// RUN: %clang -emit-llvm -S -o %t %s
 
 struct s0 {
   void *a;