Hi,

Revisions on my 10586 patch has exposed a couple of shortcomings with my 
recent varobj tree testing infrastructure's handling of path expressions.

I am proposing the attached patch which updates comments and fixes a 
bunch of path expression problems. The most notable change for this is 
an assumption that all varobjs are compound types unless the type is 
recognized as a simple type.

With this patch, I can now test path expressions in my 10586 patch which 
I had previously omitted.

Comments/questions/concerns?

Keith

testsuite/ChangeLog
2011-12-16  Keith Seitz  <keiths@redhat.com>

	* lib/mi-support.exp: Expand comments about PATH_EXPR.
	(varobj_tree::get_path_expr): Assume that all varobjs are
	compound unless they are known simple types.
	Adjust path expressions based on parent type, path parent type,
	and tree language.
	(varobj_tree::walk_tree): Add LANGUAGE parameter and save it into
	the root varobj.
	(mi_walk_varobj_tree): Add LANGUAGE parameter.