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/Coverage/html-diagnostics.c b/test/Coverage/html-diagnostics.c
index 75d4e06..6144f2f 100644
--- a/test/Coverage/html-diagnostics.c
+++ b/test/Coverage/html-diagnostics.c
@@ -1,5 +1,5 @@
 // RUN: rm -rf %t &&
-// RUN: clang --html-diags=%t -checker-simple %s
+// RUN: clang-cc --html-diags=%t -checker-simple %s
 
 void f0(int x) {
   int *p = &x;