c-typeck.c (struct c_switch): Rename switch_stmt field to switch_expr.
* c-typeck.c (struct c_switch): Rename switch_stmt field to
switch_expr.
(c_start_case): Build SWITCH_EXPR, not SWITCH_STMT.
(do_case): Use SWITCH_COND rather than SWITCH_STMT_COND.
(c_finish_case): Use SWITCH_BODY rather than SWITCH_STMT_BODY.
Call c_do_switch_expr_warnings rather than c_do_switch_warnings.
* c-common.c (c_do_switch_warnings_1): New static function broken
out of c_do_switch_warnings.
(c_do_switch_warnings): Call c_do_switch_warnings_1.
(c_do_switch_expr_warnings): New function.
* c-common.h (c_do_switch_expr_warnings): Declare.