Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/cleanup-stack.c b/test/CodeGen/cleanup-stack.c
index cc734e6..3a13432 100644
--- a/test/CodeGen/cleanup-stack.c
+++ b/test/CodeGen/cleanup-stack.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s -o %t &&
+// RUN: clang-cc -emit-llvm %s -o %t &&
 // RUN: grep "store i32 0, i32\* %cleanup" %t | count 2
 void f(int n) {
   int a[n];