c++: premature overload resolution [PR93085]

c++: premature overload resolution [PR93085]

We can't resolve the call to foo<42> before instantiation of G, because the
template parameter of #1 has dependent type.  But we were missing that in
our dependency check, because the tree walk of DECL_TEMPLATE_PARMS doesn't
look into the types of template parameters.  So look at them directly.

gcc/cp/ChangeLog:

	PR c++/93085
	* pt.c (uses_outer_template_parms): Handle non-type and template
	template parameters specifically.

gcc/testsuite/ChangeLog:

	PR c++/93085
	* g++.dg/template/dependent-tmpl1.C: New test.