@Override
	public String toString() {
		StringBuilder builder = new StringBuilder();
		builder.append(String.format("0x%09x, 0x%06x, %d", inlinee, fileId, sourceLineNum));
		for (Integer id : extraFileIds) {
			builder.append(String.format(" 0x%06x", id));
		}
		return builder.toString();
	}
Returns the list of extra file IDs
@return the extra file IDs
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/C13ExtendedInlineeSourceLine.java