Get rid of promotedType=none annotations

pkg/front_end/testcases/inference/generic_methods_handle_override_of_non_generic_with_generic.dart

Index: pkg/front_end/testcases/inference/generic_methods_handle_override_of_non_generic_with_generic.dart
diff --git a/pkg/front_end/testcases/inference/generic_methods_handle_override_of_non_generic_with_generic.dart b/pkg/front_end/testcases/inference/generic_methods_handle_override_of_non_generic_with_generic.dart
index b3307b27d209f4882df98a22e400491c123e67a6..8bd35443e2ccc936ee6287e6d7d1cac87dab340d 100644
--- a/pkg/front_end/testcases/inference/generic_methods_handle_override_of_non_generic_with_generic.dart
+++ b/pkg/front_end/testcases/inference/generic_methods_handle_override_of_non_generic_with_generic.dart
@@ -6,17 +6,17 @@
 library test;
 
 class C {
-  m(x) => /*@promotedType=none*/ x;
-  dynamic g(int x) => /*@promotedType=none*/ x;
+  m(x) => x;
+  dynamic g(int x) => x;
 }
 
 class D extends C {
-  /*error:INVALID_METHOD_OVERRIDE*/ T m<T>(T x) => /*@promotedType=none*/ x;
-  /*error:INVALID_METHOD_OVERRIDE*/ T g<T>(T x) => /*@promotedType=none*/ x;
+  /*error:INVALID_METHOD_OVERRIDE*/ T m<T>(T x) => x;
+  /*error:INVALID_METHOD_OVERRIDE*/ T g<T>(T x) => x;
 }
 
 main() {
   int y = /*info:DYNAMIC_CAST*/ (/*info:UNNECESSARY_CAST*/ new D() as C)
       . /*@target=C::m*/ m(42);
-  print(/*@promotedType=none*/ y);
+  print(y);
 }