Remove insta dep

Author: lnicola

Cargo.lock

@@ -33,7 +33,6 @@ chalk-ir = { version = "0.18.0" }
 chalk-recursive = { version = "0.18.0" }
 
 [dev-dependencies]
-insta = "0.16.0"
 expect = { path = "../expect" }
 
 tracing = "0.1"

crates/ra_hir_ty/Cargo.toml

@@ -34,8 +34,8 @@ use crate::{
 };
 
 // These tests compare the inference results for all expressions in a file
-// against snapshots of the expected results using insta. Use cargo-insta to
-// update the snapshots.
+// against snapshots of the expected results using expect. Use
+// `env UPDATE_EXPECT=1 cargo test -p ra_hir_ty` to update the snapshots.
 
 fn setup_tracing() -> tracing::subscriber::DefaultGuard {
     use tracing_subscriber::{layer::SubscriberExt, EnvFilter, Registry};

crates/ra_hir_ty/src/tests.rs

@@ -170,8 +170,7 @@ The innermost and most elaborate boundary is `hir`. It has a much richer
 vocabulary of types than `ide`, but the basic testing setup is the same: we
 create a database, run some queries, assert result.
 
-For comparisons, we use [insta](https://github.com/mitsuhiko/insta/) library for
-snapshot testing.
+For comparisons, we use the `expect` crate for snapshot testing.
 
 To test various analysis corner cases and avoid forgetting about old tests, we
 use so-called marks. See the `marks` module in the `test_utils` crate for more.