[turbofan] MemoryOptimizer cannot deal with dead nodes in use lists.

test/mjsunit/regress/regress-crbug-614292.js

Index: test/mjsunit/regress/regress-crbug-614292.js
diff --git a/test/mjsunit/regress/regress-5006.js b/test/mjsunit/regress/regress-crbug-614292.js
similarity index 72%
copy from test/mjsunit/regress/regress-5006.js
copy to test/mjsunit/regress/regress-crbug-614292.js
index 29f145de0ac38c971c0c9174a83ea0cee285bb18..3a67c17f6010b3bf60a8b7c9aa019ff369ddfadf 100644
--- a/test/mjsunit/regress/regress-5006.js
+++ b/test/mjsunit/regress/regress-crbug-614292.js
@@ -4,8 +4,11 @@
 
 // Flags: --allow-natives-syntax
 
-function foo(x) { return Math.imul(x|0, 2); }
-print(foo(1));
-print(foo(1));
+function foo() {
+  return [] | 0 && values[0] || false;
+}
+
 %OptimizeFunctionOnNextCall(foo);
-print(foo(1));
+try {
+  foo();
+} catch (e) {}