private void findNextMatch() {
			while (it.hasNext()) {
				Symbol s = it.next();
				Matcher matcher = pattern.matcher(s.getName());
				if (matcher.matches()) {
					nextMatch = s;
					return;
				}
			}
		}
Called by the NamespaceManager when a namespace is removed; remove all symbols that have the
given namespace ID.

@param namespaceID ID of namespace being removed
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/symbol/SymbolManager.java