[committed] allow assert in inner class

[Per Bothner]

Jeff Sturm wrote:

> build_assertion really should use build_incomplete_class_ref, not
> build_dot_class_method_invocation.  The former already handles the case
> where GET_CPC is an inner class or interface.

That makes sense - I'll try that.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/