void markFilledInForBase(RecordNumber recordNumber) {
		RecordNumber mappedNumber = getMappedRecordNumber(recordNumber);
		filledInStructure.add(mappedNumber);
	}
Stores whether the structure referenced by the record number has been filled in such that
it can be used as a base class
@param recordNumber record number of type record
Ghidra/Features/PDB/src/main/java/ghidra/app/util/pdb/pdbapplicator/DefaultPdbApplicator.java