Fix soft-wrapping with fold creases (#28029)

Release Notes:

- Fixed a rendering bug that caused context in the agent to not wrap
properly.

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Zed AI <ai+claude-3.7@zed.dev>

crates/language/src/buffer.rs

@@ -25,8 +25,8 @@ use collections::HashMap;
 use fs::MTime;
 use futures::channel::oneshot;
 use gpui::{
-    AnyElement, App, AppContext as _, Context, Entity, EventEmitter, HighlightStyle, Pixels,
-    SharedString, StyledText, Task, TaskLabel, TextStyle, Window,
+    App, AppContext as _, Context, Entity, EventEmitter, HighlightStyle, SharedString, StyledText,
+    Task, TaskLabel, TextStyle,
 };
 use lsp::{LanguageServerId, NumberOrString};
 use parking_lot::Mutex;
@@ -43,14 +43,13 @@ use std::{
     cmp::{self, Ordering, Reverse},
     collections::{BTreeMap, BTreeSet},
     ffi::OsStr,
-    fmt,
     future::Future,
     iter::{self, Iterator, Peekable},
     mem,
     num::NonZeroU32,
-    ops::{Deref, DerefMut, Range},
+    ops::{Deref, Range},
     path::{Path, PathBuf},
-    rc, str,
+    rc,
     sync::{Arc, LazyLock},
     time::{Duration, Instant},
     vec,
@@ -483,45 +482,6 @@ pub struct Chunk<'a> {
     pub is_unnecessary: bool,
     /// Whether this chunk of text was originally a tab character.
     pub is_tab: bool,
-    /// An optional recipe for how the chunk should be presented.
-    pub renderer: Option<ChunkRenderer>,
-}
-
-/// A recipe for how the chunk should be presented.
-#[derive(Clone)]
-pub struct ChunkRenderer {
-    /// creates a custom element to represent this chunk.
-    pub render: Arc<dyn Send + Sync + Fn(&mut ChunkRendererContext) -> AnyElement>,
-    /// If true, the element is constrained to the shaped width of the text.
-    pub constrain_width: bool,
-}
-
-pub struct ChunkRendererContext<'a, 'b> {
-    pub window: &'a mut Window,
-    pub context: &'b mut App,
-    pub max_width: Pixels,
-}
-
-impl fmt::Debug for ChunkRenderer {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        f.debug_struct("ChunkRenderer")
-            .field("constrain_width", &self.constrain_width)
-            .finish()
-    }
-}
-
-impl Deref for ChunkRendererContext<'_, '_> {
-    type Target = App;
-
-    fn deref(&self) -> &Self::Target {
-        self.context
-    }
-}
-
-impl DerefMut for ChunkRendererContext<'_, '_> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        self.context
-    }
 }
 
 /// A set of edits to a given version of a buffer, computed asynchronously.