@Override
		public void restoreXml(XmlPullParser parser) {
			XmlElement el = parser.start("possiblefuncstart");
			restoreXmlAttributes(el);
			parser.end();
		}
Get an existing function right above the addr.
@param program program to check
@param addr address to check
@return true if there is an existing function above addr
Ghidra/Features/BytePatterns/src/main/java/ghidra/app/analyzers/FunctionStartAnalyzer.java