gcc/cp/ChangeLog:
PR c++/43206
* cp-tree.h (get_template_parms_at_level): Declare ...
* pt.c (get_template_parms_at_level): ... new function.
* typeck.c (get_template_parms_of_dependent_type): If a template
type parm's DECL_CONTEXT isn't yet set, get its siblings from
current_template_parms. Use get_template_parms_at_level. Remove
useless test.
(incompatible_dependent_types_p): If we get empty parms from just one
of the template type parms we are comparing then the template parms are
incompatible.
gcc/testsuite/ChangeLog:
PR c++/43206
* g++.dg/template/typedef30.C: New test case.
From-SVN: r157730
