re PR c++/51225 ([c++0x] [4.7 Regression] ICE with invalid template parameter)

/cp
2012-01-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51225
	* typeck2.c (store_init_value): Within a template guard
	cxx_constant_value with require_potential_constant_expression.
	* pt.c (convert_nontype_argument): Likewise.

/testsuite
2012-01-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51225
	* g++.dg/cpp0x/pr51225.C: New.

From-SVN: r183286