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/var-align.c b/test/CodeGen/var-align.c
index be585c0..b0b62ae 100644
--- a/test/CodeGen/var-align.c
+++ b/test/CodeGen/var-align.c
@@ -1,4 +1,4 @@
-// RUN: clang -emit-llvm %s -o - | grep "align 16" | count 2
+// RUN: clang-cc -emit-llvm %s -o - | grep "align 16" | count 2
 
 __attribute((aligned(16))) float a[128];
 union {int a[4]; __attribute((aligned(16))) float b[4];} u;