Rename buffer crate to text and name its entrypoint after the crate

Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>

crates/project/Cargo.toml

@@ -4,10 +4,10 @@ version = "0.1.0"
 edition = "2018"
 
 [features]
-test-support = ["language/test-support", "buffer/test-support"]
+test-support = ["language/test-support", "text/test-support"]
 
 [dependencies]
-buffer = { path = "../buffer" }
+text = { path = "../text" }
 client = { path = "../client" }
 clock = { path = "../clock" }
 fsevent = { path = "../fsevent" }

crates/project/src/fs.rs

@@ -1,5 +1,4 @@
 use anyhow::{anyhow, Result};
-use buffer::Rope;
 use fsevent::EventStream;
 use futures::{Stream, StreamExt};
 use postage::prelude::Sink as _;
@@ -11,6 +10,7 @@ use std::{
     pin::Pin,
     time::{Duration, SystemTime},
 };
+use text::Rope;
 
 #[async_trait::async_trait]
 pub trait Fs: Send + Sync {

crates/project/src/worktree.rs

@@ -3004,7 +3004,6 @@ mod tests {
     use super::*;
     use crate::fs::FakeFs;
     use anyhow::Result;
-    use buffer::Point;
     use client::test::{FakeHttpClient, FakeServer};
     use fs::RealFs;
     use language::{tree_sitter_rust, LanguageServerConfig};
@@ -3018,6 +3017,7 @@ mod tests {
         fmt::Write,
         time::{SystemTime, UNIX_EPOCH},
     };
+    use text::Point;
     use util::test::temp_tree;
 
     #[gpui::test]
@@ -3559,8 +3559,8 @@ mod tests {
 
     #[gpui::test]
     async fn test_buffer_file_changes_on_disk(mut cx: gpui::TestAppContext) {
-        use buffer::{Point, Selection, SelectionGoal};
         use std::fs;
+        use text::{Point, Selection, SelectionGoal};
 
         let initial_contents = "aaa\nbbbbb\nc\n";
         let dir = temp_tree(json!({ "the-file": initial_contents }));