[generators] Implement %GeneratorGetSourcePosition.

src/compiler/js-intrinsic-lowering.h

Index: src/compiler/js-intrinsic-lowering.h
diff --git a/src/compiler/js-intrinsic-lowering.h b/src/compiler/js-intrinsic-lowering.h
index f9deedb40f027c872002e6b425034ea8b8d10b28..f4b869561245e3d66f928fe06a312ebc75840ec8 100644
--- a/src/compiler/js-intrinsic-lowering.h
+++ b/src/compiler/js-intrinsic-lowering.h
@@ -42,7 +42,7 @@ class JSIntrinsicLowering final : public AdvancedReducer {
   Reduction ReduceDoubleHi(Node* node);
   Reduction ReduceDoubleLo(Node* node);
   Reduction ReduceGeneratorClose(Node* node);
-  Reduction ReduceGeneratorGetInput(Node* node);
+  Reduction ReduceGeneratorGetInputOrDebugPos(Node* node);
   Reduction ReduceGeneratorGetResumeMode(Node* node);
   Reduction ReduceIsInstanceType(Node* node, InstanceType instance_type);
   Reduction ReduceIsJSReceiver(Node* node);