re PR c++/63207 (ICE in expand_expr_real_l when instantiating a template with a lambda that captures a const variable with a dependent initializer)

	PR c++/63207
	* semantics.c (outer_var_p): Non-static.
	(process_outer_var_ref): Split out from finish_id_expression.
	* pt.c (tsubst_copy_and_build): Call them.
	* cp-tree.h: Declare them.

From-SVN: r216056