* ipa-polymorphic-call.c

* ipa-polymorphic-call.c
	(ipa_polymorphic_call_context::restrict_to_inner_class):
	Rename EXPECTED_TYPE to OTR_TYPE; Validate speculation late;
	use speculation_consistent_p to do so; Add CONSDER_BASES
	and CONSIDER_PLACEMENT_NEW parameters.
	(contains_type_p): Add CONSDER_PLACEMENT_NEW and CONSIDER_BASES;
	short circuit obvious cases.
	(ipa_polymorphic_call_context::dump): Improve formatting.
	(ipa_polymorphic_call_context::ipa_polymorphic_call_context): Use
	combine_speculation_with to record speculations; Do not ICE when
	object is located in pointer type decl; do not ICE for methods
	of UNION_TYPE; do not record nonpolymorphic types.
	(ipa_polymorphic_call_context::speculation_consistent_p): New method.
	(ipa_polymorphic_call_context::combine_speculation_with): New method.
	(ipa_polymorphic_call_context::combine_with): New method.
	(ipa_polymorphic_call_context::make_speculative): Move here; use
	combine speculation.
	* cgraph.h (ipa_polymorphic_call_context): Update
	restrict_to_inner_class prototype; add offset_by, make_speculative,
	combine_with, useless_p, combine_speculation_with and
	speculation_consistent_p methods.
	(ipa_polymorphic_call_context::offset_by): New method.
	(ipa_polymorphic_call_context::useless_p): New method.

From-SVN: r215790