Spelling fixes e to i.

pkg/compiler/lib/src/js_emitter/type_test_registry.dart

Index: pkg/compiler/lib/src/js_emitter/type_test_registry.dart
diff --git a/pkg/compiler/lib/src/js_emitter/type_test_registry.dart b/pkg/compiler/lib/src/js_emitter/type_test_registry.dart
index 2fd279dfb6384473ccae2d2a40cc7ad3ec3f5660..5938c6979d2180340267e1141aabe1ffa7bfd41e 100644
--- a/pkg/compiler/lib/src/js_emitter/type_test_registry.dart
+++ b/pkg/compiler/lib/src/js_emitter/type_test_registry.dart
@@ -34,7 +34,7 @@ class TypeTestRegistry {
   Set<ClassEntity> checkedClasses;
 
   /**
-   * The set of function types that checked, both explicity through tests of
+   * The set of function types that checked, both explicitly through tests of
    * typedefs and implicitly through type annotations in checked mode.
    */
   Set<FunctionType> checkedFunctionTypes;