switch to insta for testing

crates/test_utils/src/lib.rs

@@ -1,8 +1,6 @@
-use std::fmt;
 use std::fs;
 use std::path::{Path, PathBuf};
 
-use itertools::Itertools;
 use text_unit::{TextRange, TextUnit};
 use serde_json::Value;
 
@@ -31,12 +29,6 @@ macro_rules! assert_eq_text {
     }};
 }
 
-pub fn assert_eq_dbg(expected: &str, actual: &impl fmt::Debug) {
-    let actual = format!("{:?}", actual);
-    let expected = expected.lines().map(|l| l.trim()).join(" ");
-    assert_eq!(expected, actual);
-}
-
 pub fn extract_offset(text: &str) -> (TextUnit, String) {
     match try_extract_offset(text) {
         None => panic!("text should contain cursor marker"),