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/Preprocessor/dump_macros.c b/test/Preprocessor/dump_macros.c
index 348257f..d3e06b2 100644
--- a/test/Preprocessor/dump_macros.c
+++ b/test/Preprocessor/dump_macros.c
@@ -1,4 +1,4 @@
-// RUN: clang -E -dM %s -o %t &&
+// RUN: clang-cc -E -dM %s -o %t &&
 
 // Space even without expansion tokens
 // RUN: grep "#define A(x) " %t &&