Convert tests to text-size

Author: matklad

crates/ra_assists/src/lib.rs

@@ -308,8 +308,7 @@ mod tests {
         let before = "struct Foo { <|>bar: u32 }";
         let (before_cursor_pos, before) = extract_offset(before);
         let (db, file_id) = helpers::with_single_file(&before);
-        let frange =
-            FileRange { file_id, range: TextRange::offset_len(before_cursor_pos, 0.into()) };
+        let frange = FileRange { file_id, range: TextRange::empty(before_cursor_pos) };
         let assists = resolved_assists(&db, frange);
         let mut assists = assists.iter();
 

crates/ra_hir_def/src/body/scope.rs

@@ -194,7 +194,7 @@ mod tests {
         let (off, code) = extract_offset(code);
         let code = {
             let mut buf = String::new();
-            let off = off.to_usize();
+            let off: usize = off.into();
             buf.push_str(&code[..off]);
             buf.push_str("marker");
             buf.push_str(&code[off..]);