Added for-loop variable tracking and regular closures/initializers captured variable tracking.

pkg/compiler/lib/src/kernel/element_map_impl.dart

Index: pkg/compiler/lib/src/kernel/element_map_impl.dart
diff --git a/pkg/compiler/lib/src/kernel/element_map_impl.dart b/pkg/compiler/lib/src/kernel/element_map_impl.dart
index 35c5ca186372c6ab6c6fb0130ba46070a1efaca7..e5017b6d0259d298b57392a358d84034841e7835 100644
--- a/pkg/compiler/lib/src/kernel/element_map_impl.dart
+++ b/pkg/compiler/lib/src/kernel/element_map_impl.dart
@@ -694,6 +694,9 @@ class KernelToElementMapImpl extends KernelToElementMapBase
 
   ir.Class getKernelClass(KClass entity) => _classEnvs[entity.classIndex].cls;
 
+  ir.Member getKernelMember(KMember entity) =>

[Siggi Cherem (dart-lang), 2017/06/30 22:02:10]

@override?

[Emily Fortuna, 2017/06/30 23:48:10]

no, in this case, like the "getKernelClass" above, it's only exposed in the Impl
class, so it's not overriding anything.

+      _memberList[entity.memberIndex].node;
+
   @override
   Local getLocalFunction(ir.TreeNode node) => _getLocal(node);
 
@@ -1809,7 +1812,10 @@ class JsKernelToElementMap extends KernelToElementMapBase
 
   @override
   Local getLocalFunction(ir.TreeNode node) {
-    throw new UnsupportedError("JsKernelToElementMap.getLocalFunction");
+    // TODO(efortuna, johnniwinther): This function should not be called once
+    // the K + J element situation has been properly sorted out. Ultimately this
+    // should throw.
+    return _elementMap.getLocalFunction(node);
   }
 
   @override