Get rid of promotedType=none annotations

pkg/front_end/testcases/inference/list_literals.dart

Index: pkg/front_end/testcases/inference/list_literals.dart
diff --git a/pkg/front_end/testcases/inference/list_literals.dart b/pkg/front_end/testcases/inference/list_literals.dart
index 8217164370ff5fa71cb7e549f9454fb87eae4ba2..db2ed9a8c12d73f442b0d74e19d17d179358b4ad 100644
--- a/pkg/front_end/testcases/inference/list_literals.dart
+++ b/pkg/front_end/testcases/inference/list_literals.dart
@@ -7,20 +7,17 @@ library test;
 
 test1() {
   var /*@type=List<int>*/ x = /*@typeArgs=int*/ [1, 2, 3];
-  /*@promotedType=none*/ x
-      . /*@target=List::add*/ add(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 'hi');
-  /*@promotedType=none*/ x
-      . /*@target=List::add*/ add(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 4.0);
-  /*@promotedType=none*/ x. /*@target=List::add*/ add(4);
-  List<num> y = /*@promotedType=none*/ x;
+  x. /*@target=List::add*/ add(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 'hi');
+  x. /*@target=List::add*/ add(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 4.0);
+  x. /*@target=List::add*/ add(4);
+  List<num> y = x;
 }
 
 test2() {
   var /*@type=List<num>*/ x = /*@typeArgs=num*/ [1, 2.0, 3];
-  /*@promotedType=none*/ x
-      . /*@target=List::add*/ add(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 'hi');
-  /*@promotedType=none*/ x. /*@target=List::add*/ add(4.0);
-  List<int> y = /*info:ASSIGNMENT_CAST*/ /*@promotedType=none*/ x;
+  x. /*@target=List::add*/ add(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/ 'hi');
+  x. /*@target=List::add*/ add(4.0);
+  List<int> y = /*info:ASSIGNMENT_CAST*/ x;
 }
 
 main() {