Code intelligence 3.4 tracking issue

Created by: chrismwendt

User story

• As a user, code intel sometimes feels slow and buggy and I want it to feel fast and smooth. Hover tooltips don't show up and I can't click "Find references" consistently.

• As a user, I want the option to stay in my code host when clicking "Go to definition" or "Find references".

Issues

• Add "Submit code intel feedback" button to the toolbar
  • Go https://github.com/sourcegraph/sourcegraph-go/pull/70
  • TypeScript https://github.com/sourcegraph/sourcegraph-typescript/pull/175
  • Basic code intel https://github.com/sourcegraph/sourcegraph-basic-code-intel/pull/100
• Upload basic-code-intel coverage https://github.com/sourcegraph/sourcegraph-basic-code-intel/pull/113
• Use @sourcegraph/lsp-client https://github.com/sourcegraph/sourcegraph-go/issues/28
  • Use @sourcegraph/lsp-client in the Go extension https://github.com/sourcegraph/sourcegraph-go/pull/36
  • Add support for custom initializationOptions in lsp-client https://github.com/sourcegraph/lsp-client/pull/36
  • Move originalRootUri to initializationOptions https://github.com/sourcegraph/go-langserver/pull/369 subsumed by the next item
  • Support "rootUri": "git://..." in go-langserver https://github.com/sourcegraph/go-langserver/pull/373
  • Derive zipURL from zipURLTemplate https://github.com/sourcegraph/go-langserver/pull/370
• Single-click j2d https://github.com/sourcegraph/enterprise/issues/11047
  • Expose API in codeintellify https://github.com/sourcegraph/codeintellify/pull/106
  • Use in web app https://github.com/sourcegraph/sourcegraph/pull/3444
  • Split it into 2 pieces:
    • Replace click-based pinning with pin icon
    • Use single-click for j2d
  • Gather evidence from users or the team that this is better
• Investigate LSIF (discussion and doc at https://sourcegraph.slack.com/archives/CHXHX7XAS/p1556571369004700)
• Make identCharPattern configurable per language https://github.com/sourcegraph/sourcegraph/issues/3614
• Add a delay to the disappearance of the hover tooltip https://github.com/sourcegraph/codeintellify/issues/48
• Show loading indicator somewhere other than the tooltip
• Highlight other occurrences of variables https://github.com/sourcegraph/sourcegraph/issues/1283
• Dependency graph (insofar as it makes basic code intel more precise)
• References panel in code hosts
• Radical thought: pre-compute hovers in the background (like Kythe, Haskell Code Explorer)
• Support j2d on parameters and local variables (using tree-sitter)
  • Proof of concept https://github.com/sourcegraph/sourcegraph-basic-code-intel/pull/110
• Filter definitions for all languages https://github.com/sourcegraph/sourcegraph-basic-code-intel/pull/67
• Filter definitions by parent (from ctags)