Switch syntax and string literal clash

[chenglou]

switch bla {| a => b} clashes with {|hello new string literal ()()|}.

The suggestion is to switch the string literal from {|a|} to a (a-la js) or maybe """ a-la python.

If we go with the former, we need to change polymorphic variant's syntax from `Bla to something else, like #bla.

[jordwalke]

When I join everything on one line to demo the formatter / pretty printer, this bites me. Thanks for filing.

[jordwalke]

Another benefit to using the ES6 multiline literal (backtick) is that they will render correctly as (green) strings inside of the Chrome debugger when compiling into JS and running in the browser.

For example, see how the current multiline strings do not render correctly in the Chrome debugger.

[anmonteiro]

I think with Reason v3 this is no longer true? i.e. switch now requires parens.