[debugger] fix stepping over await calls for ignition generators.

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index 5a5ce40d8144ee7fac3bb39574345eaad7722a4f..1ba343bc82080830e0e0a11f1c66b850fd0be101 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -1792,6 +1792,11 @@ void Interpreter::DoSuspendGenerator(InterpreterAssembler* assembler) {
   Node* generator_reg = __ BytecodeOperandReg(0);
   Node* generator = __ LoadRegister(generator_reg);
 
+  Node* debug_step = __ DebugSteppingAcrossAwait();
+  Label if_stepping(assembler, Label::kDeferred), ok(assembler);
+  __ BranchIf(debug_step, &if_stepping, &ok);
+  __ Bind(&ok);
+
   Node* array =
       __ LoadObjectField(generator, JSGeneratorObject::kOperandStackOffset);
   Node* context = __ GetContext();
@@ -1802,6 +1807,13 @@ void Interpreter::DoSuspendGenerator(InterpreterAssembler* assembler) {
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset, state);
 
   __ Dispatch();
+
+  __ Bind(&if_stepping);
+  {
+    Node* context = __ GetContext();
+    __ CallRuntime(Runtime::kDebugRecordAsyncFunction, context, generator);
+    __ Goto(&ok);
+  }
 }
 
 // ResumeGenerator <generator>