Warning fixes:

Warning fixes:

        * Makefile.in (lang.o): Depend on $(RTL_H) $(EXPR_H).

        * expr.c (java_stack_pop, java_array_data_offset,
        build_java_throw_out_of_bounds_exception, case_identity,
        build_java_check_indexed_type): Add static prototypes.
        (linenumber_table, expand_invoke, expand_java_field_op,
        build_primtype_type_ref, expand_byte_code): Constify a char*.

        * java-tree.h (build_primtype_type_ref, linenumber_table):
        Constify a char*.
        (java_lang_expand_expr): Add prototype.

        * lang.c: Include rtl.h and expr.h.  Remove extern prototype for
        `java_lang_expand_expr'.

        * lex.c (java_lex_error): Constify a char*.
        (java_get_unicode, java_read_char, java_allocate_new_line,
        java_unget_unicode, java_sneak_unicode): Prototype.

        * parse-scan.y (current_class, package_name, method_declarator,
        report_class_declaration, yyerror): Constify a char*.

        * parse.h (java_report_errors): Prototype.
        (yyerror): Constify a char*.

        * parse.y (classitf_redefinition_error, check_modifiers,
        parse_jdk1_1_error, lookup_package_type,
        lookup_package_type_and_set_next, get_printable_method_name,
        purify_type_name): Constify a char*.
        (build_super_invocation, maybe_generate_finit,
        verify_constructor_super, parser_add_interface,
        add_superinterfaces, jdep_resolve_class, note_possible_classname,
        java_complete_expand_methods, java_expand_finals,
        cut_identifier_in_qualified, java_stabilize_reference,
        do_unary_numeric_promotion, operator_string, do_merge_string_cste,
        merge_string_cste): Prototype.
        (single_type_import_declaration, yyerror,
        variable_redefinition_error, build_array_from_name,
        build_unresolved_array_type, check_class_interface_creation,
        resolve_class, complete_class_report_errors,
        note_possible_classname, read_import_dir,
        find_in_imports_on_demand, resolve_package, fix_constructors,
        check_deprecation, lookup_method_invoke,
        maybe_build_primttype_type_ref, array_constructor_check_entry):
        Constify a char*.
        (java_complete_expand_methods, java_expand_finals): Make static.
        (convert_narrow): Remove static prototype.

From-SVN: r28498