@Override
	public boolean isGlobal() {
		return true;
	}
Construct the function shell given a name and address
@param id is an id to associate with the new symbol
@param nm is the given name
@param addr is the given address
@param manage is PcodeDataTypeManager to facilitate XML marshaling
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/HighFunctionShellSymbol.java