[turbofan] Optimize strict equality with unique input.

src/compiler/types.h

Index: src/compiler/types.h
diff --git a/src/compiler/types.h b/src/compiler/types.h
index 0b50bf46aa27e51c4005c8c751b85df693994b8b..b04f4e3c98fc26d28344e228bd6c47a1bb2a5634 100644
--- a/src/compiler/types.h
+++ b/src/compiler/types.h
@@ -173,6 +173,8 @@ namespace compiler {
   V(StringOrReceiver,           kString | kReceiver) \
   V(Unique,                     kBoolean | kUniqueName | kNull | kUndefined | \
                                 kReceiver) \
+  V(NonStringUniqueOrHole,      kBoolean | kHole | kNull | kReceiver | \
+                                kSymbol | kUndefined) \
   V(Internal,                   kHole | kExternalPointer | kOtherInternal) \
   V(NonInternal,                kPrimitive | kReceiver) \
   V(NonNumber,                  kUnique | kString | kInternal) \