* linespec.c: Include language.h.

	* linespec.c: Include language.h.
	(find_methods): Add language parameter.  Call
	lookup_symbol_in_language.  Pass language down.
	(add_matching_methods): Likewise.  Call
	lookup_symbol_in_language.
	(add_constructors): Likewise.
	(find_method): Pass sym_class to collect_methods.
	(collect_methods): Add sym_class parameter.  Pass language
	down.
	* symtab.c (lookup_symbol): Rename to ...
	(lookup_symbol_in_language): ... this.  Add language
	parameter.  Use passed language instead of current_language.
	(lookup_symbol): New as wrapper around
	lookup_symbol_in_language.
	(lookup_symbol_aux): Add language parameter.  Use passed
	language instead of current_language.
	(search_symbols): Indent.
	* symtab.h (enum language): Forward declare.
	(lookup_symbol_in_language): Declare.
	(lookup_symbol): Update description.
	* ada-lang.h (lookup_symbol_in_language): Remove declaration.
	* ada-lang.c (restore_language): Remove.
	(lookup_symbol_in_language): Remove.