public boolean hasInjection() {
		return hasUponEntry || hasUponReturn;
	}
Return true if this model has specific p-code injections associated with it
(either an "uponentry" or "uponreturn" payload),
which are used to decompile functions with this model. 
@return true if this model uses p-code injections
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/PrototypeModel.java