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/atomic.c b/test/CodeGen/atomic.c
index bfebd34..0e2d850 100644
--- a/test/CodeGen/atomic.c
+++ b/test/CodeGen/atomic.c
@@ -1,4 +1,4 @@
-// RUN: clang %s -emit-llvm -o - > %t1 &&
+// RUN: clang-cc %s -emit-llvm -o - > %t1 &&
 // RUN: grep @llvm.atomic.load.add.i32 %t1 &&
 // RUN: grep @llvm.atomic.load.sub.i32 %t1 &&
 // RUN: grep @llvm.atomic.load.min.i32 %t1 &&