* ipa-inline.c (can_inline_edge_p): Short circuit if inline_failed
	already is final.
	(ipa_inline): Recompute inline_failed codes.
	* cif-code.def (FUNCTION_NOT_OPTIMIZED, REDEFINED_EXTERN_INLINE,
	USES_COMDAT_LOCAL, ATTRIBUTE_MISMATCH, UNREACHABLE): Declare as 
	CIF_FINAL_ERROR.

From-SVN: r221530