Add Class/MemberDefinition to handle synthesized classes/members

pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart

Index: pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
diff --git a/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart b/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
index ed9fc51ecdbe83c36043c7ad7e9abba4c64cfe23..094e469713e1ecac982b382bcc3ebe8a16de4183 100644
--- a/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
+++ b/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
@@ -143,10 +143,28 @@ class KernelAstAdapter extends KernelToElementMapBaseMixin
     return target;
   }
 
+  MemberDefinition getMemberDefinition(MemberElement member) {
+    ir.Node node = getMemberNode(member);
+    if (member is ConstructorBodyElement) {
+      return new SpecialMemberDefinition(
+          member, node, MemberKind.constructorBody);
+    } else if (node is ir.Constructor) {
+      return new SpecialMemberDefinition(member, node, MemberKind.constructor);
+    } else if (node is ir.FunctionDeclaration ||
+        node is ir.FunctionExpression) {
+      return new SpecialMemberDefinition(member, node, MemberKind.closureCall);
+    }
+    return new RegularMemberDefinition(member, node);
+  }
+
   ir.Node getClassNode(ClassElement cls) {
     throw new UnsupportedError('KernelAstAdapter.getClassNode');
   }
 
+  ClassDefinition getClassDefinition(ClassElement cls) {
+    throw new UnsupportedError('KernelAstAdapter.getClassDefinition');
+  }
+
   @override
   CommonElements get commonElements => _compiler.resolution.commonElements;