re PR c++/27801 (ICE in invert_truthvalue with template)

	PR c++/27801
	* call.c (perform_implicit_conversion): Do not actually perform
	conversions in templates.
	PR c++/26496
	* call.c (resolve_args): Check for invalid uses of bound
	non-static member functions.
	* init.c (build_offset_ref): Return error_mark_node for errors.
	PR c++/27385
	* decl.c (reshape_init): Robustify.
	(reshape_init_array_1): Likewise.
	PR c++/27801
	* g++.dg/template/cond6.C: New test.
	PR c++/26496
	* g++.dg/template/crash51.C: New test.
	* g++.old-deja/g++.mike/net36.C: Tweak error markers.
	PR c++/27385
	* g++.dg/init/array20.C: New test.

From-SVN: r114278