If a variable template specialization with an incomplete array type is
referenced, try to instantiate its definition in order to complete the type.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190910 91177308-0d34-0410-b5e6-96231b3b80d8
-ast-dump support for variable templates.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190911 91177308-0d34-0410-b5e6-96231b3b80d8