@Override
	public boolean hasCallFixup(Address callDestAddr) {
		Program program = instr.getProgram();
		Function func = program.getFunctionManager().getFunctionAt(callDestAddr);
		if (func == null) {
			return false;
		}
		return (func.getCallFixup() != null);
	}
Initialize the cache or any references on an instruction that would cause an override.

@return list of any program overrides
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/listing/InstructionPcodeOverride.java