Extract CallStructure from Selector.

pkg/compiler/lib/src/elements/elements.dart

Index: pkg/compiler/lib/src/elements/elements.dart
diff --git a/pkg/compiler/lib/src/elements/elements.dart b/pkg/compiler/lib/src/elements/elements.dart
index 4d8f29abb5b21d19fdecf9cff6f8adef1eabafde..b845ffc536f9e654f4c04e0c290a76d508e9a3b0 100644
--- a/pkg/compiler/lib/src/elements/elements.dart
+++ b/pkg/compiler/lib/src/elements/elements.dart
@@ -980,6 +980,9 @@ abstract class ExecutableElement extends Element
 abstract class MemberElement extends Element implements ExecutableElement {
   /// The local functions defined within this member.
   List<FunctionElement> get nestedClosures;
+
+  /// The name of this member taking privacy into account.
+  Name get memberName;
 }
 
 /// A function, variable or parameter defined in an executable context.
@@ -1253,8 +1256,8 @@ abstract class ConstructorElement extends FunctionElement
 }
 
 /// JavaScript backend specific element for the body of constructor.
-// TODO(johnniwinther): Remove this class for the element model.
-abstract class ConstructorBodyElement extends FunctionElement {
+// TODO(johnniwinther): Remove this class from the element model.
+abstract class ConstructorBodyElement extends MethodElement {
   FunctionElement get constructor;
 }