Stream symbols like diagnostics

[mickaelistria]

It could be relevant to always show the symbols for a file (Eclipse has the outline view which allows that). In such case, an operation that would "stream" symbols like diagnostics would make it easier to implement a reactive list of symbols.

[dbaeumer]

I think if we want to have a symbol tree like in Eclipse we need a protocol addition to incrementally update an existing tree like we can incrementally update the content of a text document.

[mickaelistria]

The current symbols action do return "range" for a given symbol. Range are enough to show a tree. The Eclipse/LSP integration already managed to show a tree in the outline for a given file according to symbols.

[felixfbecker]

@mickaelistria this is possible with our streaming proposal #182

[dbaeumer]

Please see also #786

[dbaeumer]

Closing the issue. Corresponding support has been speced in dbaeumer/3.15 branch.