Change language::anchor::min() to a constant

Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Nathan Sobo <nathan@zed.dev>

crates/language/src/diagnostic_set.rs

@@ -187,10 +187,10 @@ impl DiagnosticEntry<Anchor> {
 impl Default for Summary {
     fn default() -> Self {
         Self {
-            start: Anchor::build_min(),
-            end: Anchor::build_max(),
-            min_start: Anchor::build_max(),
-            max_end: Anchor::build_min(),
+            start: Anchor::MIN,
+            end: Anchor::MAX,
+            min_start: Anchor::MAX,
+            max_end: Anchor::MIN,
             count: 0,
         }
     }

crates/language/src/tests.rs

@@ -789,7 +789,7 @@ fn test_random_collaboration(cx: &mut MutableAppContext, mut rng: StdRng) {
     for buffer in &buffers {
         let buffer = buffer.read(cx).snapshot();
         let actual_remote_selections = buffer
-            .remote_selections_in_range(Anchor::build_min()..Anchor::build_max())
+            .remote_selections_in_range(Anchor::MIN..Anchor::MAX)
             .map(|(replica_id, selections)| (replica_id, selections.collect::<Vec<_>>()))
             .collect::<Vec<_>>();
         let expected_remote_selections = active_selections