Spelling fixes e to i.

tests/compiler/dart2js/kernel/constructors_test.dart

Index: tests/compiler/dart2js/kernel/constructors_test.dart
diff --git a/tests/compiler/dart2js/kernel/constructors_test.dart b/tests/compiler/dart2js/kernel/constructors_test.dart
index 1acb6889a01ba688d383b14978f1f2de76364429..7946801fbeb31be4878a262864db62c08cf0a2f8 100644
--- a/tests/compiler/dart2js/kernel/constructors_test.dart
+++ b/tests/compiler/dart2js/kernel/constructors_test.dart
@@ -48,7 +48,7 @@ main() => new Foo(number: 3);
   });
 
   // TODO(efortuna): Kernel needs to have some additional constructor
-  // implementaion work before this is legitimately equivalent code to the
+  // implementation work before this is legitimately equivalent code to the
   // original AST.
 /*  test('initialized field and constructor', () {
     String code = '''