Prototype section not included at the root in embedded mode

[djspiewak]

Easy way to reproduce this with existing packages:

1. Install the MarkdownEditing mode
2. Create a new buffer in "Markdown (GFM)" mode
3. Create a scala-fenced code block
4. Enter a line comment (starts with //) within the block

The line comment will not be highlighted as a comment, and Scala constructs within the line (e.g. keywords) will be highlighted. However, if you get Sublime to push a nested context onto the stack – for example, by opening a { … } block – the comments will work within the block (though still not before or after).

I think what's happening is the prototype section, which is what the Scala mode now uses for comments, is not being included in the root context of an embedded mode, but is being included for nested contexts.

[FichteFoll]

sublimehq/sublime_text#1062

[djspiewak]

@FichteFoll Nice. Closing mine as duplicate.