Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
diff --git a/clang/test/Sema/text-diag.c b/clang/test/Sema/text-diag.c
index 2e31291..19847c6 100644
--- a/clang/test/Sema/text-diag.c
+++ b/clang/test/Sema/text-diag.c
@@ -1,4 +1,4 @@
-// RUN: clang -fsyntax-only %s
+// RUN: clang-cc -fsyntax-only %s
 unsigned char *foo = "texto\
 que continua\
 e continua";