re PR c++/57638 (warning container: 'integer_cst’ not supported by dump_type#<type error>)

/cp
2013-06-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c++/57638
	* pt.c (unify, [TEMPLATE_PARM_INDEX]): Pass to unify_type_mismatch
	TREE_TYPE (arg), not arg itself.

/testsuite
2013-06-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c++/57638
	* g++.dg/template/error53.C: New.

From-SVN: r200192