replace that files contents with this and delete this one.
`text_*.txt` files are for cases when test file doesn't look good, so demo file should be kept separately.

running `node lib/ace/mode/_test/highlight_rules_test.js --gen` generates json file automatically from either txt file or demo file.
`node lib/ace/mode/_test/highlight_rules_test.js lsl` ensures that output from lsl tokenizer didn't change from the time it was last generated, you only need to verify that generated tokens are really what you want them to be.