A small error message improvement and some comment cleanup for static_cast.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58762 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/static-cast.cpp b/test/SemaCXX/static-cast.cpp
index 44b4921..6874ccb 100644
--- a/test/SemaCXX/static-cast.cpp
+++ b/test/SemaCXX/static-cast.cpp
@@ -113,7 +113,7 @@
 
   // Bad code below
 
-  (void)static_cast<int*>((const void*)0); // expected-error {{static_cast from 'void const *' to 'int *' is not allowed}}
+  (void)static_cast<int*>((const void*)0); // expected-error {{static_cast from 'void const *' to 'int *' casts away constness}}
   (void)static_cast<void (*)()>((void*)0); // expected-error {{static_cast from 'void *' to 'void (*)(void)' is not allowed}}
 }