* cp-tree.h (finish_static_data_member_decl): New function.
	* decl2.c (finish_static_data_member_decl): Split out from ...
	(grokfield): Here.
	* pt.c (instantiate_class_template): Use it here instead of
	trying to fake it.
	(tsubst_decl): Don't set DECL_ASSEMBLER_NAME;
	finish_static_data_member_decl will do that.  Explicit set
	DECL_EXTERNAL to match non-template processing.

From-SVN: r26548