Remove the Option part of range ends in the HIR

compiler/rustc_span/src/hygiene.rs

@@ -1173,6 +1173,8 @@ pub enum DesugaringKind {
     BoundModifier,
     /// Calls to contract checks (`#[requires]` to precond, `#[ensures]` to postcond)
     Contract,
+    /// A pattern type range start/end
+    PatTyRange,
 }
 
 impl DesugaringKind {
@@ -1190,6 +1192,7 @@ impl DesugaringKind {
             DesugaringKind::WhileLoop => "`while` loop",
             DesugaringKind::BoundModifier => "trait bound modifier",
             DesugaringKind::Contract => "contract check",
+            DesugaringKind::PatTyRange => "pattern type",
         }
     }
 }

compiler/rustc_span/src/symbol.rs

@@ -308,6 +308,9 @@ symbols! {
         RangeFull,
         RangeInclusive,
         RangeInclusiveCopy,
+        RangeMax,
+        RangeMin,
+        RangeSub,
         RangeTo,
         RangeToInclusive,
         Rc,
@@ -1522,6 +1525,7 @@ symbols! {
         pattern_complexity_limit,
         pattern_parentheses,
         pattern_type,
+        pattern_type_range_trait,
         pattern_types,
         permissions_from_mode,
         phantom_data,