public void witnessIpiDetection(boolean ipiStreamHasNoName, boolean hasIdStream) {
		if (ipiStreamHasNoName && !hasIdStream) {
			pdbAnomalies.add(PdbAnomaly.UNINDICATED_EXISTING_IPI);
		}
	}
This list indicates which Symbol Types ({@link AbstractMsSymbol}) have been seen in real
 data, giving us some confidence as to whether we have parsed them OK or not.  We can set
 a break point in the method containing the switch statement to trigger whenever we find a
 symbol type not in this list.
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/PdbReaderMetrics.java