VM.assert(opcode == JBC_ldc_w || opcode == JBC_ldc2_w);
VM._assert(opcode == JBC_ldc_w || opcode == JBC_ldc2_w);
  public final int getWideConstantIndex() {    if (VM.VerifyAssertions)      VM.assert(opcode == JBC_ldc_w || opcode == JBC_ldc2_w);    return readUnsignedShort();  }