* tree.c (protected_set_expr_location): New.
        * tree.h (protected_set_expr_location): New prototype.
        * c-tree.h (build_array_ref): Add argument.
        (parser_build_unary_op): Same.
        * c-typeck.c (build_indirect_ref): Handle new location argument.
        (build_array_ref): Same.
        (parser_build_unary_op): Same.
        * gimplify.c (gimplify_asm_expr): Set input_location before calling
        error.
        * c-omp.c (c_finish_omp_atomic): Pass location when calling
        build_indirect_ref.
        * c-common.c (finish_label_address_expr): Handle new location
        argument.
        * c-common.h (build_indirect_ref): Add argument.
        (finish_label_address_expr): Same.
        * c-parser.c (c_parser_unary_expression): Pass location to build
        functions.
        (c_parser_postfix_expression): Same.
objc/
        * objc-act.c (build_typed_selector_reference): Pass input_location to
        build_unary_op calls.
        (build_selector_reference): Same, but to build_array_ref.
        (objc_substitute_decl): Same.
        (build_ivar_reference): Same, but to build_indirect_ref.
        (get_super_receiver): Same.
testsuite/
        * gcc.dg/20010516-1.c: Test for columns.
cp/
        * typeck.c (build_x_indirect_ref): Add location argument.
        * class.c (build_base_path): Pass location to build_indirect_ref.
        * pt.c (tsubst_copy_and_build): Pass location to
        finish_label_address_expr.
        * parser.c (cp_parser_unary_expression): Same.

From-SVN: r139867