[dart2wasm] Check bounds in list [] and []=

These tests now pass:

- co19/Language/Expressions/Lists/indices_t01
- co19/LibTest/collection/UnmodifiableListView/operator_subscript_A02_t01
- co19/LibTest/core/List/List_A01_t01
- corelib/iterable_element_at_test/none
- corelib/list_growable_test
- corelib/list_unmodifiable_test
- corelib/range_error_test
- language/no_such_method/empty_selector_test
- language/unsorted/range_analysis2_test
- language/unsorted/value_range2_test
- language/unsorted/value_range3_test
- language/unsorted/value_range_test

Change-Id: Ia96ebf6490e01e647c482406639accbfe40d44fc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/264700
Commit-Queue: Ömer Ağacan <omersa@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>

sdk/lib/_internal/wasm/lib/list.dart

@@ -18,6 +18,7 @@ abstract class _ListBase<E> extends ListBase<E> {
   _ListBase._withData(this._length, this._data);
 
   E operator [](int index) {
+    RangeError.checkValidIndex(index, this, "[]", _length);
     return unsafeCast(_data.read(index));
   }
 
@@ -51,6 +52,7 @@ abstract class _ModifiableList<E> extends _ListBase<E> {
       : super._withData(length, data);
 
   void operator []=(int index, E value) {
+    RangeError.checkValidIndex(index, this, "[]=", _length);
     _data.write(index, value);
   }