@Override
			public boolean createKeepFile() throws CancelledException {
				return false;
			}
Performs a check-in if the given file

@param df the domain file; cannot be null
@param keepCheckedOut true to keep the file checked-out after the check-in completes
@param comment the comment for the check-in
@throws IllegalArgumentException if the given file has no changes to check-in or cannot
        otherwise be checked-in
@throws Exception if there are any exceptions performing the check-in
Ghidra/Features/Base/src/test/java/ghidra/base/project/FakeSharedProject.java