private boolean validateType(int type) {
		if ((type >= 0) && (type < Math.pow(2, (NUM_PRIMARY_TYPES)))) {
			return true;
		}
		return false;
	}
validateType determines whether or not the indicated type of filter item
is valid.
Valid types are: BYTES, INSTRUCTIONS, DATA, REFERENCES,
SYMBOLS, PRIMARY_SYMBOL, COMMENTS, PROGRAM_CONTEXT, PROPERTIES, BOOKMARKS, FUNCTIONS, ALL.
The type can also be any of the predefined types "OR"ed together.

@param type the type of difference to look for between the programs.
@return true if the type is a valid merge difference type(s).
Ghidra/Features/Base/src/main/java/ghidra/program/util/ProgramMergeFilter.java