re PR c++/71665 (ICE on invalid C++ code with non-integral constant enumerator value...

re PR c++/71665 (ICE on invalid C++ code with non-integral constant enumerator value: in cxx_eval_constant_expression, at cp/constexpr.c:3918)

/cp
2016-07-28  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71665
	* decl.c (build_enumerator): Check the type of the enumerator before
	calling cxx_constant_value.

/testsuite
2016-07-28  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71665
	* g++.dg/cpp0x/pr71665-1.C: New.
	* g++.dg/cpp0x/pr71665-2.C: Likewise.
	* g++.dg/cpp0x/enum29.C: Adjust dg-error string.
	* g++.dg/ext/label10.C: Likewise.
	* g++.dg/parse/constant5.C: Likewise.

From-SVN: r238828