[C++ PATCH] tiny code cleanup

https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00041.html
	* constexpr.c (cxx_bind_parameters_in_call): Remove unneeded local
	lval var.

From-SVN: r256075

gcc/cp/ChangeLog

+2018-01-02  Nathan Sidwell  <nathan@acm.org>
+
+	* constexpr.c (cxx_bind_parameters_in_call): Remove unneeded local
+	lval var.
+
 2017-12-22  Mike Stump  <mikestump@comcast.net>
             Eric Botcazou  <ebotcazou@adacore.com>
 

gcc/cp/constexpr.c

@@ -1291,8 +1291,7 @@ cxx_bind_parameters_in_call (const constexpr_ctx *ctx, tree t,
 	  x = ctx->object;
 	  x = build_address (x);
 	}
-      bool lval = false;
-      arg = cxx_eval_constant_expression (ctx, x, lval,
+      arg = cxx_eval_constant_expression (ctx, x, /*lval=*/false,
 					  non_constant_p, overflow_p);
       /* Don't VERIFY_CONSTANT here.  */
       if (*non_constant_p && ctx->quiet)