code: public static boolean varInsnEqual(VarInsnNode insn1, VarInsnNode insn2)
  	{
  		if (insn1.var == -1 || insn2.var == -1)
  			return true;
  
  		return insn1.var == insn2.var;
  	}
docs: Checks if two {@link VarInsnNode} are equals.
  
  @param insn1 the insn1
  @param insn2 the insn2
  @return true, if successful