Break return statement can create erroneous bytecode

jjs> Function("L: {break L;return; }");
Compiling threw: java.lang.VerifyError: StackMapTable error: bad offset
Exception Details:
  Location:
jdk/nashorn/internal/scripts/Script$jsfunfuzz._L1(Ljdk/nashorn/internal/runtime/ScriptFunction;Ljava/lang/Object;)Ljava/lang/Object; @0: aload_0
  Reason:
    Invalid stackmap specification.
  Current Frame:
    bci: @8
    flags: { }
    locals: { 'jdk/nashorn/internal/runtime/ScriptFunction', 'java/lang/Object', 'jdk/nashorn/internal/runtime/ScriptObject' }
    stack: { }
  Bytecode:
    0000000: 2ab6 0018 4da7 0003
  Stackmap Table:
    append_frame(@8,Object[#53])