Revert "Cleanup TypedSelector.appliesUnnamed"

pkg/compiler/lib/src/universe/universe.dart

Index: pkg/compiler/lib/src/universe/universe.dart
diff --git a/pkg/compiler/lib/src/universe/universe.dart b/pkg/compiler/lib/src/universe/universe.dart
index 0ae3cb6906c4ce5657afd8e76bf10b0f1c9472a9..f5cc710cd38b541b6ea3b0d6c2a23b0738455c2d 100644
--- a/pkg/compiler/lib/src/universe/universe.dart
+++ b/pkg/compiler/lib/src/universe/universe.dart
@@ -844,6 +844,18 @@ class TypedSelector extends Selector {
 
   bool appliesUnnamed(Element element, World world) {
     assert(sameNameHack(element, world));
+    // [TypedSelector] are only used after resolution.
+    if (!element.isClassMember) return false;
+
+    // A closure can be called through any typed selector:
+    // class A {
+    //   get foo => () => 42;
+    //   bar() => foo(); // The call to 'foo' is a typed selector.
+    // }
+    if (element.enclosingClass.isClosure) {
+      return appliesUntyped(element, world);
+    }
+
     if (!mask.canHit(element, this, world)) return false;
     return appliesUntyped(element, world);
   }