private int getFreePage() {
			for (int i = 0; i < freePage.length; i++) {
				if (freePage[i]) {
					freePage[i] = false;
					//numUsedPages++;
					return i;
				}
			}
			String msg = "Unexpected algorithm flow";
			Msg.error(null, msg);
			throw new AssertException(msg);
		}
Dumps a number bytes of information from a Stream in the AbstractStreamFile to String.
 for debug purposes
@param streamFile the AbstractStreamFile to be used
@param streamNumber the streamNumber of the file to dump
@param maxOut maximum number of bytes to dump
@return string containing the output
Ghidra/Features/PDB/src/test/java/ghidra/app/util/bin/format/pdb2/pdbreader/msf/MsfReaderUnitTest.java