[turbofan] Optimize typeof o === "object" checks.

src/compiler/simplified-lowering.cc

Index: src/compiler/simplified-lowering.cc
diff --git a/src/compiler/simplified-lowering.cc b/src/compiler/simplified-lowering.cc
index 9f0b5f681e4f08f5b146f187b7146de8f0a0df64..94a078a5976ba129b93d9c5f52f1b9aedd4cf33f 100644
--- a/src/compiler/simplified-lowering.cc
+++ b/src/compiler/simplified-lowering.cc
@@ -2515,8 +2515,11 @@ class RepresentationSelector {
         return;
       }
       case IrOpcode::kObjectIsCallable: {
-        // TODO(turbofan): Add Type::Callable to optimize this?
-        VisitUnop(node, UseInfo::AnyTagged(), MachineRepresentation::kBit);
+        VisitObjectIs(node, Type::Callable(), lowering);
+        return;
+      }
+      case IrOpcode::kObjectIsNonCallable: {
+        VisitObjectIs(node, Type::NonCallable(), lowering);
         return;
       }
       case IrOpcode::kObjectIsNumber: {