Add Closure call method to created closure class

pkg/compiler/lib/src/js_model/locals.dart

Index: pkg/compiler/lib/src/js_model/locals.dart
diff --git a/pkg/compiler/lib/src/js_model/locals.dart b/pkg/compiler/lib/src/js_model/locals.dart
index 9b714b26ef37564a68b568338f0c49a2912dd17d..8cfa431352b199ff238f1e10a754a8309f815d56 100644
--- a/pkg/compiler/lib/src/js_model/locals.dart
+++ b/pkg/compiler/lib/src/js_model/locals.dart
@@ -135,7 +135,9 @@ class KernelToLocalsMapImpl implements KernelToLocalsMap {
   Local getLocalFunction(ir.TreeNode node) {

[sra1, 2017/07/28 22:09:40]

Can we split this into two methods for FunctionExpression and
FunctionDeclaration.

Do we even need a Local for a FunctionExpression?

[Emily Fortuna, 2017/07/28 23:17:08]

Added a TODO, for discussion with Johnni.

     assert(node is ir.FunctionDeclaration || node is ir.FunctionExpression,
         failedAt(currentMember, 'Invalid local function node: $node'));
-    return _map.putIfAbsent(node, () {
+    var lookupName = node;
+    if (node is ir.FunctionDeclaration) lookupName = node.variable;
+    return _map.putIfAbsent(lookupName, () {
       String name;
       if (node is ir.FunctionDeclaration) {
         name = node.variable.name;