Toggle Block Comment doesn't work if the open/close delimiters are the same

[peterflynn]

1. Add this line to the CoffeeScript section of languages.json: "blockComment": ["###", "###"],
2. Open a .coffee file with these contents:

foo = 42
bar = true
baz = "hello"
number = -42 if bar
square = (x) -> x * x

1. Select the middle 3 lines and Toggle Block Comment
2. Immediately Toggle Block Comment again
3. Undo back to clean state
4. Repeat step 3
5. Select all the lines, including the ### lines, then Toggle Block Comment again
6. Undo back to a clean state
7. Select just one line (without including newlines) and Toggle Block Comment
8. Either (a) immediately toggle again, or (b) re-select the whole line to include delimiters and then toggle

Result:
4 - closing delimiter isn't removed
7 - comment is wrapped in a second pair of ### lines
10 - one "#" is removed from the opening ###, but nothing else changes

[peterflynn]

@TomMalbran interested in digging back into the block comment code at all? :-)

[TomMalbran]

Sure. I'll take a look later today.

[TomMalbran]

By the way, you need to add lineComment: "#" too, to get the same results as 10.

[njx]

Reviewed. Marking medium priority. Thanks for fixing this Tom.