Allow reviewing of agent changes without Git (#27668)

Release Notes:

- N/A

crates/fs/src/fake_git_repo.rs

@@ -5,8 +5,8 @@ use futures::future::{self, BoxFuture};
 use git::{
     blame::Blame,
     repository::{
-        AskPassSession, Branch, CommitDetails, GitIndex, GitRepository, GitRepositoryCheckpoint,
-        PushOptions, Remote, RepoPath, ResetMode,
+        AskPassSession, Branch, CommitDetails, GitRepository, GitRepositoryCheckpoint, PushOptions,
+        Remote, RepoPath, ResetMode,
     },
     status::{FileStatus, GitStatus, StatusCode, TrackedStatus, UnmergedStatus},
 };
@@ -81,15 +81,7 @@ impl FakeGitRepository {
 impl GitRepository for FakeGitRepository {
     fn reload_index(&self) {}
 
-    fn load_index_text(
-        &self,
-        index: Option<GitIndex>,
-        path: RepoPath,
-    ) -> BoxFuture<Option<String>> {
-        if index.is_some() {
-            unimplemented!();
-        }
-
+    fn load_index_text(&self, path: RepoPath) -> BoxFuture<Option<String>> {
         async {
             self.with_state_async(false, move |state| {
                 state
@@ -179,19 +171,6 @@ impl GitRepository for FakeGitRepository {
         self.path()
     }
 
-    fn status(
-        &self,
-        index: Option<GitIndex>,
-        path_prefixes: &[RepoPath],
-    ) -> BoxFuture<'static, Result<GitStatus>> {
-        if index.is_some() {
-            unimplemented!();
-        }
-
-        let status = self.status_blocking(path_prefixes);
-        async move { status }.boxed()
-    }
-
     fn status_blocking(&self, path_prefixes: &[RepoPath]) -> Result<GitStatus> {
         let workdir_path = self.dot_git_path.parent().unwrap();
 
@@ -457,12 +436,4 @@ impl GitRepository for FakeGitRepository {
     ) -> BoxFuture<Result<String>> {
         unimplemented!()
     }
-
-    fn create_index(&self) -> BoxFuture<Result<GitIndex>> {
-        unimplemented!()
-    }
-
-    fn apply_diff(&self, _index: GitIndex, _diff: String) -> BoxFuture<Result<()>> {
-        unimplemented!()
-    }
 }