Revert of [compiler] Drop the CompareNilIC.

src/crankshaft/hydrogen-types.cc

Index: src/crankshaft/hydrogen-types.cc
diff --git a/src/crankshaft/hydrogen-types.cc b/src/crankshaft/hydrogen-types.cc
index 58e4f0b1b588e2f21b9745ef3b1c969d3b36bf2a..8c8562581a1d1cc5d38241764e86e9ff1a25b4bc 100644
--- a/src/crankshaft/hydrogen-types.cc
+++ b/src/crankshaft/hydrogen-types.cc
@@ -22,7 +22,7 @@
   if (type->Is(Type::Boolean())) return HType::Boolean();
   if (type->Is(Type::Undefined())) return HType::Undefined();
   if (type->Is(Type::Object())) return HType::JSObject();
-  if (type->Is(Type::DetectableReceiver())) return HType::JSReceiver();
+  if (type->Is(Type::Receiver())) return HType::JSReceiver();
   return HType::Tagged();
 }
 
@@ -43,13 +43,8 @@
   if (value->IsString()) return HType::String();
   if (value->IsBoolean()) return HType::Boolean();
   if (value->IsUndefined()) return HType::Undefined();
-  if (value->IsJSArray()) {
-    DCHECK(!value->IsUndetectableObject());
-    return HType::JSArray();
-  }
-  if (value->IsJSObject() && !value->IsUndetectableObject()) {
-    return HType::JSObject();
-  }
+  if (value->IsJSArray()) return HType::JSArray();
+  if (value->IsJSObject()) return HType::JSObject();
   DCHECK(value->IsHeapObject());
   return HType::HeapObject();
 }