Fix #226: Parse quoted blocks with spaces (`' {`)

[lolgab]

Fixes the linked issue.

[nicolasstucki]

That does not seem right. I believe that the syntax requires the quote to be immediately followed by a curly brace. I will double check.

[tgodzik]

That does not seem right. I believe that the syntax requires the quote to be immediately followed by a curly brace. I will double check.

It doesn't actually. At least last time I checked it did compile with whitespaces :O

[nicolasstucki]

Indeed. I opened an issue to fix this in https://github.com/lampepfl/dotty/issues/13951.

For

' 	{ 2 }
' [ String ]

it looks like the current highlighting is correct for both Scala 2 and Scala 3 (after bug fix) as it is an unclosed Char or a Char with illegal contents.

[lolgab]

Thank you @nicolasstucki for fixing the underlying issue :)

[tgodzik]

@nicolasstucki should we reopen this PR since it turns out it's a correct behaviour?

[lolgab]

I'm reopening since the compiler is not changing behavior. Still, this change is not perfect because it doesn't parse a comment in the middle of ' and {.

[nicolasstucki]

This is still missing some cases, see and other comments in that thread https://github.com/scala/vscode-scala-syntax/pull/227#discussion_r777565313

[nicolasstucki]

This was fixed in #250