Handle generic factory constructors in kernel_impact

pkg/compiler/lib/src/resolution/members.dart

Index: pkg/compiler/lib/src/resolution/members.dart
diff --git a/pkg/compiler/lib/src/resolution/members.dart b/pkg/compiler/lib/src/resolution/members.dart
index 5994a15203c3a7c8eef2e0c2195f474612f4908f..39bd77da09410c377fe32e9a5e52453bc9734d3a 100644
--- a/pkg/compiler/lib/src/resolution/members.dart
+++ b/pkg/compiler/lib/src/resolution/members.dart
@@ -4063,11 +4063,13 @@ class ResolverVisitor extends MappingVisitor<ResolutionResult> {
   }
 
   DartType resolveTypeAnnotation(TypeAnnotation node,
-      {bool malformedIsError: false, bool deferredIsMalformed: true}) {
+      {bool malformedIsError: false,
+      bool deferredIsMalformed: true,
+      bool registerCheckedModeCheck: true}) {
     DartType type = typeResolver.resolveTypeAnnotation(this, node,
         malformedIsError: malformedIsError,
         deferredIsMalformed: deferredIsMalformed);
-    if (!type.isDynamic) {
+    if (registerCheckedModeCheck && !type.isDynamic) {
       registry.registerTypeUse(new TypeUse.checkedModeCheck(type));
     }
     return type;