Highlights some substrings of identifiers as if they were abilities inside case expressions

[freemagma]

I was working on the ability handler exercises on unisonweb in emacs when I came across this issue. Notice how the substring Stream in resumeStream and the substring Computation in resumeComputation are highlighted as blue, the same color as the abilities Stream and Ask. Most interestingly, it only happens inside the pattern matching part of the case expressions.

[dariooddenino]

Hmm I haven't touched this in a while, but I'm pretty sure it's because the code is naively looking for capital letters inside curly braces. Shouldn't be too hard to fix.