re PR c++/44039 (ICE: Segmentation fault on error recovery)

/cp
2010-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/44039
	* pt.c (tsubst_baselink): Return error_mark_node if lookup_fnfields
	returns NULL_TREE.

/testsuite
2010-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/44039
	* g++.dg/template/crash101.C: New.

From-SVN: r161698