Enhance the diagnostic for negative array sizes to include the
declaration name of the array when present. This ensures that
a poor-man's C++03 static_assert will include the user error message
often embedded in the name.

Update all the tests to reflect the new wording, and add a test for the
name behavior.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122802 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaTemplate/instantiate-member-expr.cpp b/test/SemaTemplate/instantiate-member-expr.cpp
index 6c0e91b..a31569a 100644
--- a/test/SemaTemplate/instantiate-member-expr.cpp
+++ b/test/SemaTemplate/instantiate-member-expr.cpp
@@ -6,7 +6,7 @@
 
 template<typename T>
 struct vector {
-  void push_back(const T&) { int a[sizeof(T) ? -1: -1]; } // expected-error {{array size is negative}}
+  void push_back(const T&) { int a[sizeof(T) ? -1: -1]; } // expected-error {{array with a negative size}}
 };
 
 class ExprEngine {