Spelling fixes e to i.

sdk/lib/_internal/js_runtime/lib/native_typed_data.dart

Index: sdk/lib/_internal/js_runtime/lib/native_typed_data.dart
diff --git a/sdk/lib/_internal/js_runtime/lib/native_typed_data.dart b/sdk/lib/_internal/js_runtime/lib/native_typed_data.dart
index 9953b06998d46cd45375d33774d523e10fae8f03..7e660e1f23d1e6f1847a313cc87f5d3bafb96fff 100644
--- a/sdk/lib/_internal/js_runtime/lib/native_typed_data.dart
+++ b/sdk/lib/_internal/js_runtime/lib/native_typed_data.dart
@@ -1878,7 +1878,7 @@ bool _isInvalidArrayIndex(int index) {
 
 /// Checks that [index] is a valid index into [list] which has length [length].
 ///
-/// That is, [index] is an insteger in the range `0..length - 1`.
+/// That is, [index] is an integer in the range `0..length - 1`.
 void _checkValidIndex(int index, List list, int length) {
   if (_isInvalidArrayIndex(index) || JS('int', '#', index) >= length) {
     throw diagnoseIndexError(list, index);