public static VM_Address getNextInstructionAddress(VM_Address fp) { if (VM.VerifyAssertions) VM.assert(VM.NOT_REACHED); return null; }
  public static void setCompiledMethodID(VM_Address fp, int newCMID) {    if (VM.VerifyAssertions) VM.assert(VM.NOT_REACHED);  // call site should have been hijacked by magic in compiler  }  /**    * Get next instruction address for a frame    * @param fp its frame pointer.   */  public static VM_Address getNextInstructionAddress(VM_Address fp) {    if (VM.VerifyAssertions) VM.assert(VM.NOT_REACHED);  // call site should have been hijacked by magic in compiler    return null;  }