Split getClosureRepresentationInfo into MemberEntity and (ir/ast) nodes

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

Index: pkg/compiler/lib/src/kernel/element_map.dart
diff --git a/pkg/compiler/lib/src/kernel/element_map.dart b/pkg/compiler/lib/src/kernel/element_map.dart
index f1fc72519504c4e22288173c50bd9ac565e9524e..3af8242e1328d6e84ce3dd9e77cfaa7dec5efcf7 100644
--- a/pkg/compiler/lib/src/kernel/element_map.dart
+++ b/pkg/compiler/lib/src/kernel/element_map.dart
@@ -434,9 +434,16 @@ abstract class KernelToLocalsMap {
   JumpTarget getJumpTargetForWhile(ir.WhileStatement node);
 
   /// Returns the [CapturedLoopScope] for the loop [node] in
-  /// [closureClassMaps].
+  /// [closureLookup].
+  // TODO(johnniwinther): Remove this when [KernelAstAdapter] is deleted.
   CapturedLoopScope getCapturedLoopScope(
       ClosureDataLookup closureLookup, ir.TreeNode node);
+
+  /// Returns the [ClosureRepresentationInfo] for the local function [node] in
+  /// [closureLookup].
+  // TODO(johnniwinther): Remove this when [KernelAstAdapter] is deleted.
+  ClosureRepresentationInfo getClosureRepresentationInfo(
+      ClosureDataLookup closureLookup, ir.TreeNode node);
 }
 
 /// Comparator for the canonical order or named arguments.