Rename clang-driver to clang.

Again, I tried to update cmake but it is untested.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67606 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/hello.c b/test/Driver/hello.c
index 503c274..7dbe9c7 100644
--- a/test/Driver/hello.c
+++ b/test/Driver/hello.c
@@ -1,4 +1,4 @@
-// RUN: clang-driver -ccc-echo -o %t %s 2> %t.log &&
+// RUN: clang -ccc-echo -o %t %s 2> %t.log &&
 
 // Make sure we used clang.
 // RUN: grep 'clang-cc" .*hello.c' %t.log &&