Fixes#7802.
If a document-symbol or formatting request refers to an unknown Carbon
file, return an LSP `InvalidParams` error instead of leaving the client
waiting. This aligns both handlers with existing behavior for
position-based requests.
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Co-authored-by: kg290 <210736705+kg290@users.noreply.github.com>
Add hover cards and jump to declaration / definition / reference for the
formatted SemIR that appears in check tests. This is done by adding a
heuristic "parser" for SemIR to the language server. The
cross-references are strictly best-effort, since this is just a tool for
Carbon developers, not a user-facing facility.
A couple of other changes made along the way:
* file_test tests with an AUTOUPDATE-SPLIT no longer look for CHECK:
lines outside that split. This was motivated by the tests for this new
facility including CHECK: lines as part of the test input.
* An agent skill for working on the language server, tracking some
things that cost Claude time when working on this.
Assisted-by: Claude via Antigravity
Implements formatting support within LSP. Current implementation
performs while file formatting, we just replace file with output of
Carbon::Format()
https://github.com/carbon-language/carbon-lang/pull/7687 independently
improves formatting so that this output is somewhat decent.
Assisted-With: Gemini / Antigravity
Karnajeet Gosaviandkg290
Richard Smith
DavidLoftus