re PR tree-optimization/46805 (ICE: SIGSEGV in optab_for_tree_code (optabs.c:407) with -O -fno-tree-scev-cprop -ftree-vectorize)

	PR tree-optimization/46805
	PR tree-optimization/46833
	* go-lang.c (go_langhook_type_for_mode): Handle vector modes.

From-SVN: r167563