public boolean getInferiorFullRelation(FidHashQuad superiorFunction,
			FunctionRecord inferiorFunction) {
		for (FidDB fidDb : fidDbList) {
			if (fidDb.getInferiorFullRelation(superiorFunction, inferiorFunction)) {
				return true;
			}
		}
		return false;
	}
Returns true if the relation exists, between an inferior (callee) function and a
full hash representing the superior (caller) function, searching across all
attached databases.
@param superiorFunction a hash representing the caller function
@param inferiorFunction the callee function
@return true if the relation exists
Ghidra/Features/FunctionID/src/main/java/ghidra/feature/fid/db/FidQueryService.java