fix: Typos

Author: alexfertel

crates/hir_def/src/test_db.rs

@@ -233,7 +233,7 @@ impl TestDB {
         events
             .into_iter()
             .filter_map(|e| match e.kind {
-                // This pretty horrible, but `Debug` is the only way to inspect
+                // This is pretty horrible, but `Debug` is the only way to inspect
                 // QueryDescriptor at the moment.
                 salsa::EventKind::WillExecute { database_key } => {
                     Some(format!("{:?}", database_key.debug(self)))

crates/hir_ty/src/test_db.rs

@@ -138,7 +138,7 @@ impl TestDB {
         events
             .into_iter()
             .filter_map(|e| match e.kind {
-                // This pretty horrible, but `Debug` is the only way to inspect
+                // This is pretty horrible, but `Debug` is the only way to inspect
                 // QueryDescriptor at the moment.
                 salsa::EventKind::WillExecute { database_key } => {
                     Some(format!("{:?}", database_key.debug(self)))

crates/syntax/src/algo.rs

@@ -173,7 +173,7 @@ pub fn diff(from: &SyntaxNode, to: &SyntaxNode) -> TreeDiff {
             }
     }
 
-    // FIXME: this is horrible inefficient. I bet there's a cool algorithm to diff trees properly.
+    // FIXME: this is horribly inefficient. I bet there's a cool algorithm to diff trees properly.
     fn go(diff: &mut TreeDiff, lhs: SyntaxElement, rhs: SyntaxElement) {
         let (lhs, rhs) = match lhs.as_node().zip(rhs.as_node()) {
             Some((lhs, rhs)) => (lhs, rhs),