Fixed incorrect number of history entries

src/register/Return.go

@@ -1,6 +1,13 @@
 package register
 
 func (f *Machine) Return() {
+	if f.Assembler.CanSkipReturn() {
+		return
+	}
+
 	f.Assembler.Return()
+	scope := f.CurrentScope()
+	scope.Reserved = 0
+	scope.Used = 0
 	f.postInstruction()
 }