cp-tree.h (binding_for_name): Move to name-lookup.h Adjust prototype.

cp-tree.h (binding_for_name): Move to name-lookup.h Adjust prototype.

	* cp-tree.h (binding_for_name: Move to name-lookup.h  Adjust
	prototype.
	(cxx_scope_find_binding_for_name): Likewise.
	* decl.c (find_binding: Move to name-lookup.c.
	(binding_for_name): Likewise.
	(cxx_scope_find_binding_for_name): Likewise.
	(BINDING_LEVEL):  Remove.
	(push_binding): Tidy.
	(push_class_binding): Likewise.
	(pop_binding): Likewise.
	(poplevel): Likewise.
	(poplevel_class): Likewise.
	(set_identifier_type_value_with_scope): Likewise.
	(push_overloaded_decl): Likewise.
	(lookup_tag): Likewise.
	(unqualified_namespace_lookup): Likewise.
	(lookup_name_current_level): Likewise.
	(maybe_inject_for_scope_var): Likewise.
	(namespace_binding): Move to name-lookup.c.
	(set_namespace_binding): Likewise.
	* decl2.c (lookup_using_namespace): Tidy.
	(qualified_lookup_using_namespace): Likewise.
	(do_toplevel_using_decl): Likewise.
	* name-lookup.c: Include "timevar.h"
	* name-lookup.h (cxx_scope):  Declare.
	(struct cxx_binding): Lose member "has_level".  Adjust "scope"
	member declaration.
	(BINDING_SCOPE): Adjust definition.
	(BINDING_HAS_LEVEL_P): Remove.

From-SVN: r65044