public String cstComment() {
    throw new UnsupportedOperationException("Not supported.");
  }
Helper which returns the comment form of the associated constants for inclusion in a human
oriented listing dump.

<p>This method is only implemented for instructions with one or more constants.

@return the comment as a string.
android/android_framework/dex-maker/src/main/java/com/android/dx/dex/code/DalvInsn.java