deps: Bump smol to 2.0 (#22956)

The collateral of this is that code size is increased by ~300kB, but I
think we can stomach it.

Release Notes:

- N/A

crates/project/src/project.rs

@@ -79,6 +79,7 @@ use std::{
     borrow::Cow,
     ops::Range,
     path::{Component, Path, PathBuf},
+    pin::pin,
     str,
     sync::Arc,
     time::Duration,
@@ -3019,6 +3020,7 @@ impl Project {
             // 64 buffers at a time to avoid overwhelming the main thread. For each
             // opened buffer, we will spawn a background task that retrieves all the
             // ranges in the buffer matched by the query.
+            let mut chunks = pin!(chunks);
             'outer: while let Some(matching_buffer_chunk) = chunks.next().await {
                 let mut chunk_results = Vec::new();
                 for buffer in matching_buffer_chunk {
@@ -3748,6 +3750,7 @@ impl Project {
         // next `flush_effects()` call.
         drop(this);
 
+        let mut rx = pin!(rx);
         let answer = rx.next().await;
 
         Ok(LanguageServerPromptResponse {
@@ -3889,7 +3892,7 @@ impl Project {
                 .query
                 .ok_or_else(|| anyhow!("missing query field"))?,
         )?;
-        let mut results = this.update(&mut cx, |this, cx| {
+        let results = this.update(&mut cx, |this, cx| {
             this.find_search_candidate_buffers(&query, message.limit as _, cx)
         })?;
 
@@ -3897,7 +3900,7 @@ impl Project {
             buffer_ids: Vec::new(),
         };
 
-        while let Some(buffer) = results.next().await {
+        while let Ok(buffer) = results.recv().await {
             this.update(&mut cx, |this, cx| {
                 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
                 response.buffer_ids.push(buffer_id.to_proto());