re PR c++/50858 (segfault at ../../gcc/libiberty/hashtab.c:981)

re PR c++/50858 (segfault at ../../gcc/libiberty/hashtab.c:981)

/cp
2011-10-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50858
	* typeck.c (composite_pointer_type_r): Check return value of
	composite_pointer_type_r for error_mark_node.

/testsuite
2011-10-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50858
	* g++.dg/overload/operator5.C: New.

/cp
2011-10-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50861
	* pt.c (tsubst_copy_and_build): Check return value of
	tsubst_copy_and_build for error_mark_node.

/testsuite
2011-10-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50861
	* g++.dg/template/crash108.C: New.

From-SVN: r180430