[CS2] Failing test rejecting inconsistent whitespace in .litcoffee files

[GeoffreyBooth]

@eelco Since #4313 was merged into 2, there is one failing test:

failed 1 and passed 724 tests in 2.05 seconds

  test/literate.litcoffee:56:5: error: indentation mismatch
                test "tabbed code", ->
                ^

If I delete everything above this test in literate.litcoffee, leaving just:

Tabs work too:

                test "tabbed code", ->
                    ok yes

Then this test passes. See comment.

[GeoffreyBooth]

Could #3924 help with this? That seems like a worthy PR in its own right.

[GeoffreyBooth]

@jashkenas @lydell what do you want to do about this? It’s causing issues with other 2-branch pull requests to have this broken test in the 2 branch. Should we comment it out or delete it until this issue is patched? Split the test into a separate .litcoffee file that only uses tabs (which doesn’t fix this issue, but rather simply makes the test pass)? Or roll back #4313 until this is fixed?

[GeoffreyBooth]

Update: potential fix in #4345.