[generators] Always call function with closure context when resuming.

src/compiler/js-intrinsic-lowering.cc

Index: src/compiler/js-intrinsic-lowering.cc
diff --git a/src/compiler/js-intrinsic-lowering.cc b/src/compiler/js-intrinsic-lowering.cc
index 9a1fe0a8b6fa4e4e12b8dde28101c1b96cc40b92..2a7a3a3896d4881c3351fcb1227e0d3f155afd91 100644
--- a/src/compiler/js-intrinsic-lowering.cc
+++ b/src/compiler/js-intrinsic-lowering.cc
@@ -42,6 +42,8 @@ Reduction JSIntrinsicLowering::Reduce(Node* node) {
       return ReduceGeneratorGetInputOrDebugPos(node);
     case Runtime::kInlineGeneratorGetResumeMode:
       return ReduceGeneratorGetResumeMode(node);
+    case Runtime::kInlineGeneratorGetContext:
+      return ReduceGeneratorGetContext(node);
     case Runtime::kInlineIsArray:
       return ReduceIsInstanceType(node, JS_ARRAY_TYPE);
     case Runtime::kInlineIsTypedArray:
@@ -140,6 +142,16 @@ Reduction JSIntrinsicLowering::ReduceGeneratorGetInputOrDebugPos(Node* node) {
   return Change(node, op, generator, effect, control);
 }
 
+Reduction JSIntrinsicLowering::ReduceGeneratorGetContext(Node* node) {
+  Node* const generator = NodeProperties::GetValueInput(node, 0);
+  Node* const effect = NodeProperties::GetEffectInput(node);
+  Node* const control = NodeProperties::GetControlInput(node);
+  Operator const* const op =
+      simplified()->LoadField(AccessBuilder::ForJSGeneratorObjectContext());
+
+  return Change(node, op, generator, effect, control);
+}
+
 Reduction JSIntrinsicLowering::ReduceGeneratorGetResumeMode(Node* node) {
   Node* const generator = NodeProperties::GetValueInput(node, 0);
   Node* const effect = NodeProperties::GetEffectInput(node);