Partially implement yield*

valuescript_vm/src/bytecode_stack_frame.rs

@@ -560,7 +560,10 @@ impl StackFrameTrait for BytecodeStackFrame {
       }
 
       YieldStar => {
-        panic!("TODO: yield*");
+        let val = self.decoder.decode_val(&self.registers);
+        self.decoder.decode_register_index(); // TODO: Use this
+
+        return Ok(FrameStepOk::YieldStar(val));
       }
     };