public static boolean isMetaData(@Nonnull AbstractInsnNode insn) {
		// The following instruction types set their opcode as '-1'
		// - FrameNode
		// - LabelNode
		// - LineNumberNode
		return insn.getOpcode() == -1;
	}
@param insn
		Instruction to check.

@return {@code true} if the instruction represents metadata such as line numbers, stack frames, or a label/offset.
recaf-core/src/main/java/software/coley/recaf/util/AsmInsnUtil.java