@Override
	public Long getBaseOffset(int tableIndex) throws PdbException {
		Long offset = baseOffsetByTableIndex.get(tableIndex);
		if (offset != null) {
			return offset;
		}
		offset = getOffsetFromMemory(tableIndex);
		if (offset != null) {
			baseOffsetByTableIndex.put(tableIndex, offset);
		}
		return offset;
	}
Returns the mangled name
@return the mangled name
Ghidra/Features/PDB/src/main/java/ghidra/app/util/pdb/classtype/ProgramVirtualBaseTable.java