[ignition] Collect feedback for super constructor calls.

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index fc5a4a4fa67c5a470aefee9b7dfe4b2d7600301e..c67e5d43f706b797a63f5fe9b77257d0fefefe69 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -2501,13 +2501,14 @@ void BytecodeGenerator::VisitCallSuper(Call* expr) {
 
   // Call construct.
   builder()->SetExpressionPosition(expr);
-  // Valid type feedback slots can only be greater than kReservedIndexCount.
-  // Assert that 0 cannot be valid a valid slot id.
-  STATIC_ASSERT(TypeFeedbackVector::kReservedIndexCount > 0);
-  // Type feedback is not necessary for super constructor calls. The type
-  // information can be inferred in most cases. Slot id 0 indicates type
-  // feedback is not required.
-  builder()->New(constructor, args, 0);
+  // TODO(turbofan): For now we do gather feedback on super constructor
+  // calls, utilizing the existing machinery to inline the actual call
+  // target and the JSCreate for the implicit receiver allocation. This
+  // is not an ideal solution for super constructor calls, but it gets
+  // the job done for now. In the long run we might want to revisit this
+  // and come up with a better way.
+  int const feedback_slot_index = feedback_index(expr->CallFeedbackICSlot());
+  builder()->New(constructor, args, feedback_slot_index);
 }
 
 void BytecodeGenerator::VisitCallNew(CallNew* expr) {