[turbofan] Optimized support for CreateGeneratorObject.

src/compiler/operator-properties.cc

Index: src/compiler/operator-properties.cc
diff --git a/src/compiler/operator-properties.cc b/src/compiler/operator-properties.cc
index 0c0a3d803aa511061b9a91dc23e74cad820510f2..7c778cbf33be835bca1ff835c64aae9d0465e858 100644
--- a/src/compiler/operator-properties.cc
+++ b/src/compiler/operator-properties.cc
@@ -34,6 +34,10 @@ bool OperatorProperties::HasFrameStateInput(const Operator* op) {
     case IrOpcode::kJSStrictEqual:
       return false;
 
+    // Generator creation cannot call back into arbitrary JavaScript.
+    case IrOpcode::kJSCreateGeneratorObject:
+      return false;
+
     // Binary operations
     case IrOpcode::kJSAdd:
     case IrOpcode::kJSSubtract: