Fix InstructionSelector to handle calls with no (used) output values.

test/mjsunit/unused-context-in-with.js

Index: test/mjsunit/unused-context-in-with.js
diff --git a/test/mjsunit/regress/regress-dictionary-to-fast-arguments.js b/test/mjsunit/unused-context-in-with.js
similarity index 63%
copy from test/mjsunit/regress/regress-dictionary-to-fast-arguments.js
copy to test/mjsunit/unused-context-in-with.js
index f12679a663d336fa2fd321f0b8f9a48282fef307..2973ca2e5a52960c6e56510539b36b36d8213b9d 100644
--- a/test/mjsunit/regress/regress-dictionary-to-fast-arguments.js
+++ b/test/mjsunit/unused-context-in-with.js
@@ -2,10 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-function f(a, b) {
-  for (var i = 10000; i > 0; i--) {
-    arguments[i] = 0;
+var x = 1;
+function foo(object) {
+  with(object) {
+    x;
   }
+  return 100;
 }
 
-f(1.5, 2.5);
+assertEquals(100,foo("str"));