Big merge from experimental to bleeding edge.

sdk/lib/_internal/compiler/implementation/resolution/members.dart

Index: sdk/lib/_internal/compiler/implementation/resolution/members.dart
diff --git a/sdk/lib/_internal/compiler/implementation/resolution/members.dart b/sdk/lib/_internal/compiler/implementation/resolution/members.dart
index e944505601164c668aab42a308a9f4e9e0d11feb..278e8009aefd1f5e80cbc64889ec83823f4221ee 100644
--- a/sdk/lib/_internal/compiler/implementation/resolution/members.dart
+++ b/sdk/lib/_internal/compiler/implementation/resolution/members.dart
@@ -2359,10 +2359,10 @@ class ResolverVisitor extends CommonResolverVisitor<Element> {
   visitForIn(ForIn node) {
     for (final name in const [
         const SourceString('iterator'),
-        const SourceString('next')]) {
-      registerImplicitInvocation(name, 0);
+        const SourceString('current')]) {
+      registerImplicitFieldGet(name);
     }
-    registerImplicitFieldGet(const SourceString('hasNext'));
+    registerImplicitInvocation(const SourceString('moveNext'), 0);
     visit(node.expression);
     Scope blockScope = new BlockScope(scope);
     Node declaration = node.declaredIdentifier;