re PR c++/63757 (nullptr conversion sequence fails to compile)

/cp
2014-11-26  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/63757
	* call.c (standard_conversion): Do not require expr to be non-null
	when NULLPTR_TYPE_P (from) is true.

/testsuite
2014-11-26  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/63757
	* g++.dg/cpp0x/nullptr33.C: New.

From-SVN: r218098