Revert of [compiler] Drop the CompareNilIC.

src/ic/ic-compiler.cc

Index: src/ic/ic-compiler.cc
diff --git a/src/ic/ic-compiler.cc b/src/ic/ic-compiler.cc
index 396eb23038d73b01881cd944e770f62f1b5eb935..f74c69e50d431ab75a449059c7a776ecf5fb396d 100644
--- a/src/ic/ic-compiler.cc
+++ b/src/ic/ic-compiler.cc
@@ -129,6 +129,29 @@
 
   FillCache(isolate, code);
   return code;
+}
+
+
+Handle<Code> PropertyICCompiler::ComputeCompareNil(Handle<Map> receiver_map,
+                                                   CompareNilICStub* stub) {
+  Isolate* isolate = receiver_map->GetIsolate();
+  Handle<String> name(isolate->heap()->empty_string());
+  if (!receiver_map->is_dictionary_map()) {
+    Handle<Code> cached_ic =
+        Find(name, receiver_map, Code::COMPARE_NIL_IC, stub->GetExtraICState());
+    if (!cached_ic.is_null()) return cached_ic;
+  }
+
+  Code::FindAndReplacePattern pattern;
+  Handle<WeakCell> cell = Map::WeakCellForMap(receiver_map);
+  pattern.Add(isolate->factory()->meta_map(), cell);
+  Handle<Code> ic = stub->GetCodeCopy(pattern);
+
+  if (!receiver_map->is_dictionary_map()) {
+    Map::UpdateCodeCache(receiver_map, name, ic);
+  }
+
+  return ic;
 }