[turbofan] Rename "original constructor" to "new target".

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 02061a75145486fe8dd6b86310151329b7be91d0..0e74afca9adf44448b106904642bf98a2aabcdff 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -2041,7 +2041,7 @@ void BytecodeGenerator::VisitThisFunctionVariable(Variable* variable) {
   // TODO(rmcilroy): Remove once we have tests which exercise this code path.
   UNIMPLEMENTED();
 
-  // Store the closure we were called with in the this_function_var.
+  // Store the closure we were called with in the given variable.
   builder()->LoadAccumulatorWithRegister(Register::function_closure());
   VisitVariableAssignment(variable, FeedbackVectorSlot::Invalid());
 }
@@ -2050,8 +2050,8 @@ void BytecodeGenerator::VisitThisFunctionVariable(Variable* variable) {
 void BytecodeGenerator::VisitNewTargetVariable(Variable* variable) {
   if (variable == nullptr) return;
 
-  // Store the closure we were called with in the this_function_var.
-  builder()->CallRuntime(Runtime::kGetOriginalConstructor, Register(), 0);
+  // Store the new target we were called with in the given variable.
+  builder()->CallRuntime(Runtime::kGetNewTarget, Register(), 0);
   VisitVariableAssignment(variable, FeedbackVectorSlot::Invalid());
 }