multiline function argument types don't highlight

[giladgray]

VS Code 1.14.2

@cmslewis reports:

works great with single-line functions:

[giladgray]

this is an issue in the grammar itself and cannot be fixed in the theme currently.

note how type tokens in the multiline syntax don't have any useful scopes applied:

while in single line functions they have all the necessary scopes for perfect coloring: