This change is just some refactoring and additional flags on handlers to reduce the size of a future CL that adds DTD support.
It:
- Slightly changes the meaning of `lspInitialized` in the server (to now mean the server is in the "initialized" state where it can handle the set of requests LSP allows after a server is initialized)
- Adds an additional future for `lspUninitialized` to track when the server moves _out_ of that state
- Removes an expando in LspOverLegacyHandler that tracked handlers against a server, because they're now available in the `lspInitialized` future (for DTD support, we need access to them without the LSP-over-Legacy handler, because we need to initialize DTD at startup regardless of whether a legacy client triggers LSP initialization)
- Adds a flag `requiresTrustedCaller` to handlers to indicate whether they can only be called by the native protocol clients. Tthis must be explicitly provided for shared handlers to ensure each choice is deliberate. The flag is unused in this CL but included here to reduce noise in the next (it touches many files)
- Changes the type of `toJson()` on generated enum clases to have the native type of the value that is returned
Change-Id: I0615cf4671b84887bf56c236d82d0fa3c26e6d87
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/379304
Commit-Queue: Keerti Parthasarathy <keertip@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Keerti Parthasarathy <keertip@google.com>
Danny Tuppeny
6411c07255