Debugger implementation (#13433)

###  DISCLAIMER

> As of 6th March 2025, debugger is still in development. We plan to
merge it behind a staff-only feature flag for staff use only, followed
by non-public release and then finally a public one (akin to how Git
panel release was handled). This is done to ensure the best experience
when it gets released.

### END OF DISCLAIMER 

**The current state of the debugger implementation:**


https://github.com/user-attachments/assets/c4deff07-80dd-4dc6-ad2e-0c252a478fe9


https://github.com/user-attachments/assets/e1ed2345-b750-4bb6-9c97-50961b76904f

----

All the todo's are in the following channel, so it's easier to work on
this together:
https://zed.dev/channel/zed-debugger-11370

If you are on Linux, you can use the following command to join the
channel:
```cli
zed https://zed.dev/channel/zed-debugger-11370 
```

## Current Features

- Collab
  - Breakpoints
    - Sync when you (re)join a project
    - Sync when you add/remove a breakpoint
  - Sync active debug line
  - Stack frames
    - Click on stack frame
      - View variables that belong to the stack frame
      - Visit the source file
    - Restart stack frame (if adapter supports this)
  - Variables
  - Loaded sources
  - Modules
  - Controls
    - Continue
    - Step back
      - Stepping granularity (configurable)
    - Step into
      - Stepping granularity (configurable)
    - Step over
      - Stepping granularity (configurable)
    - Step out
      - Stepping granularity (configurable)
  - Debug console
- Breakpoints
  - Log breakpoints
  - line breakpoints
  - Persistent between zed sessions (configurable)
  - Multi buffer support
  - Toggle disable/enable all breakpoints
- Stack frames
  - Click on stack frame
    - View variables that belong to the stack frame
    - Visit the source file
    - Show collapsed stack frames
  - Restart stack frame (if adapter supports this)
- Loaded sources
  - View all used loaded sources if supported by adapter.
- Modules
  - View all used modules (if adapter supports this)
- Variables
  - Copy value
  - Copy name
  - Copy memory reference
  - Set value (if adapter supports this)
  - keyboard navigation
- Debug Console
  - See logs
  - View output that was sent from debug adapter
    - Output grouping
  - Evaluate code
    - Updates the variable list
    - Auto completion
- If not supported by adapter, we will show auto-completion for existing
variables
- Debug Terminal
- Run custom commands and change env values right inside your Zed
terminal
- Attach to process (if adapter supports this)
  - Process picker
- Controls
  - Continue
  - Step back
    - Stepping granularity (configurable)
  - Step into
    - Stepping granularity (configurable)
  - Step over
    - Stepping granularity (configurable)
  - Step out
    - Stepping granularity (configurable)
  - Disconnect
  - Restart
  - Stop
- Warning when a debug session exited without hitting any breakpoint
- Debug view to see Adapter/RPC log messages
- Testing
  - Fake debug adapter
    - Fake requests & events

---

Release Notes:

- N/A

---------

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Piotr Osiewicz <peterosiewicz@gmail.com>
Co-authored-by: Piotr <piotr@zed.dev>

crates/extension_host/src/extension_store_test.rs

@@ -8,9 +8,9 @@ use collections::BTreeMap;
 use extension::ExtensionHostProxy;
 use fs::{FakeFs, Fs, RealFs};
 use futures::{io::BufReader, AsyncReadExt, StreamExt};
-use gpui::{AppContext as _, SemanticVersion, TestAppContext};
+use gpui::{AppContext as _, SemanticVersion, SharedString, TestAppContext};
 use http_client::{FakeHttpClient, Response};
-use language::{LanguageMatcher, LanguageRegistry, LanguageServerBinaryStatus};
+use language::{BinaryStatus, LanguageMatcher, LanguageRegistry};
 use lsp::LanguageServerName;
 use node_runtime::NodeRuntime;
 use parking_lot::Mutex;
@@ -663,18 +663,9 @@ async fn test_extension_store_with_test_extension(cx: &mut TestAppContext) {
             status_updates.next().await.unwrap(),
         ],
         [
-            (
-                LanguageServerName("gleam".into()),
-                LanguageServerBinaryStatus::CheckingForUpdate
-            ),
-            (
-                LanguageServerName("gleam".into()),
-                LanguageServerBinaryStatus::Downloading
-            ),
-            (
-                LanguageServerName("gleam".into()),
-                LanguageServerBinaryStatus::None
-            )
+            (SharedString::new("gleam"), BinaryStatus::CheckingForUpdate),
+            (SharedString::new("gleam"), BinaryStatus::Downloading),
+            (SharedString::new("gleam"), BinaryStatus::None)
         ]
     );
 

crates/extension_host/src/wasm_host/wit/since_v0_0_1.rs

@@ -3,7 +3,7 @@ use crate::wasm_host::wit::since_v0_0_4;
 use crate::wasm_host::WasmState;
 use anyhow::Result;
 use extension::{ExtensionLanguageServerProxy, WorktreeDelegate};
-use language::LanguageServerBinaryStatus;
+use language::BinaryStatus;
 use semantic_version::SemanticVersion;
 use std::sync::{Arc, OnceLock};
 use wasmtime::component::{Linker, Resource};
@@ -132,17 +132,11 @@ impl ExtensionImports for WasmState {
         status: LanguageServerInstallationStatus,
     ) -> wasmtime::Result<()> {
         let status = match status {
-            LanguageServerInstallationStatus::CheckingForUpdate => {
-                LanguageServerBinaryStatus::CheckingForUpdate
-            }
-            LanguageServerInstallationStatus::Downloading => {
-                LanguageServerBinaryStatus::Downloading
-            }
+            LanguageServerInstallationStatus::CheckingForUpdate => BinaryStatus::CheckingForUpdate,
+            LanguageServerInstallationStatus::Downloading => BinaryStatus::Downloading,
             LanguageServerInstallationStatus::Cached
-            | LanguageServerInstallationStatus::Downloaded => LanguageServerBinaryStatus::None,
-            LanguageServerInstallationStatus::Failed(error) => {
-                LanguageServerBinaryStatus::Failed { error }
-            }
+            | LanguageServerInstallationStatus::Downloaded => BinaryStatus::None,
+            LanguageServerInstallationStatus::Failed(error) => BinaryStatus::Failed { error },
         };
 
         self.host

crates/extension_host/src/wasm_host/wit/since_v0_1_0.rs

@@ -8,7 +8,7 @@ use extension::{ExtensionLanguageServerProxy, KeyValueStoreDelegate, WorktreeDel
 use futures::{io::BufReader, FutureExt as _};
 use futures::{lock::Mutex, AsyncReadExt};
 use language::LanguageName;
-use language::{language_settings::AllLanguageSettings, LanguageServerBinaryStatus};
+use language::{language_settings::AllLanguageSettings, BinaryStatus};
 use project::project_settings::ProjectSettings;
 use semantic_version::SemanticVersion;
 use std::{
@@ -474,16 +474,10 @@ impl ExtensionImports for WasmState {
         status: LanguageServerInstallationStatus,
     ) -> wasmtime::Result<()> {
         let status = match status {
-            LanguageServerInstallationStatus::CheckingForUpdate => {
-                LanguageServerBinaryStatus::CheckingForUpdate
-            }
-            LanguageServerInstallationStatus::Downloading => {
-                LanguageServerBinaryStatus::Downloading
-            }
-            LanguageServerInstallationStatus::None => LanguageServerBinaryStatus::None,
-            LanguageServerInstallationStatus::Failed(error) => {
-                LanguageServerBinaryStatus::Failed { error }
-            }
+            LanguageServerInstallationStatus::CheckingForUpdate => BinaryStatus::CheckingForUpdate,
+            LanguageServerInstallationStatus::Downloading => BinaryStatus::Downloading,
+            LanguageServerInstallationStatus::None => BinaryStatus::None,
+            LanguageServerInstallationStatus::Failed(error) => BinaryStatus::Failed { error },
         };
 
         self.host

crates/extension_host/src/wasm_host/wit/since_v0_3_0.rs

@@ -13,7 +13,7 @@ use extension::{
 };
 use futures::{io::BufReader, FutureExt as _};
 use futures::{lock::Mutex, AsyncReadExt};
-use language::{language_settings::AllLanguageSettings, LanguageName, LanguageServerBinaryStatus};
+use language::{language_settings::AllLanguageSettings, BinaryStatus, LanguageName};
 use project::project_settings::ProjectSettings;
 use semantic_version::SemanticVersion;
 use std::{
@@ -692,16 +692,10 @@ impl ExtensionImports for WasmState {
         status: LanguageServerInstallationStatus,
     ) -> wasmtime::Result<()> {
         let status = match status {
-            LanguageServerInstallationStatus::CheckingForUpdate => {
-                LanguageServerBinaryStatus::CheckingForUpdate
-            }
-            LanguageServerInstallationStatus::Downloading => {
-                LanguageServerBinaryStatus::Downloading
-            }
-            LanguageServerInstallationStatus::None => LanguageServerBinaryStatus::None,
-            LanguageServerInstallationStatus::Failed(error) => {
-                LanguageServerBinaryStatus::Failed { error }
-            }
+            LanguageServerInstallationStatus::CheckingForUpdate => BinaryStatus::CheckingForUpdate,
+            LanguageServerInstallationStatus::Downloading => BinaryStatus::Downloading,
+            LanguageServerInstallationStatus::None => BinaryStatus::None,
+            LanguageServerInstallationStatus::Failed(error) => BinaryStatus::Failed { error },
         };
 
         self.host