Revert of [compiler] Drop the CompareNilIC.

src/crankshaft/hydrogen-instructions.cc

Index: src/crankshaft/hydrogen-instructions.cc
diff --git a/src/crankshaft/hydrogen-instructions.cc b/src/crankshaft/hydrogen-instructions.cc
index 6aa88dbb634032e0f8858fab2898971cc71db4f4..a9c6228cd35c096636a22d9e2358434dfd48e5cc 100644
--- a/src/crankshaft/hydrogen-instructions.cc
+++ b/src/crankshaft/hydrogen-instructions.cc
@@ -3272,17 +3272,6 @@
         ? FirstSuccessor() : SecondSuccessor();
     return true;
   }
-  if (value()->type().IsNull() || value()->type().IsUndefined()) {
-    *block = FirstSuccessor();
-    return true;
-  }
-  if (value()->type().IsBoolean() ||
-      value()->type().IsSmi() ||
-      value()->type().IsString() ||
-      value()->type().IsJSReceiver()) {
-    *block = SecondSuccessor();
-    return true;
-  }
   *block = NULL;
   return false;
 }