Fix syntax highlighting for quoted expressions and types

• Add fix to VS code
• Add fix to GitHub (https://github.com/github/linguist/pull/4044)

We are currently using the first kind of quote to avoid formatting issues as shown below. Currently ' assumes that it contains a single Char or an encoded Char such as '\n'.

It would be good to make it an alias to allow users to copy-paste code from the documentation. I have already had this issue and the error message is not that helpful.

val expr1 = ’{ 1 + x }
val expr2 = ’{ y - 9 }

val expr1 = '{ 1 + x }
val expr2 = '{ y - 9 }

'[Int]
'[List[Int]]

Screenshot:

[nicolasstucki]

I managed to edit that template and fix the issue.

[odersky]

I would say, let’s do both: Fix the syntax highlighting and introduce the alias.