Insert default arguments for static calls and constructor calls.

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

Index: pkg/compiler/lib/src/kernel/kernel.dart
diff --git a/pkg/compiler/lib/src/kernel/kernel.dart b/pkg/compiler/lib/src/kernel/kernel.dart
index c1e777d45ba53b55f7dbf17b8676ca63ca9d0513..77c7e2b74ee1ac83582db44dbf9025668512ba0c 100644
--- a/pkg/compiler/lib/src/kernel/kernel.dart
+++ b/pkg/compiler/lib/src/kernel/kernel.dart
@@ -11,7 +11,8 @@ import 'package:kernel/verifier.dart' show CheckParentPointers;
 import '../common.dart';
 import '../common/names.dart';
 import '../compiler.dart' show Compiler;
-import '../constants/expressions.dart' show TypeConstantExpression;
+import '../constants/expressions.dart'
+    show ConstantExpression, TypeConstantExpression;
 import '../dart_types.dart'
     show DartType, FunctionType, InterfaceType, TypeKind, TypeVariableType;
 import '../diagnostics/messages.dart' show MessageKind;
@@ -79,6 +80,9 @@ class Kernel {
   // both.
   final Set<ir.Node> syntheticNodes = new Set<ir.Node>();
 
+  final Map<ir.Node, ConstantExpression> parameterInitializerNodeToConstant =
+      <ir.Node, ConstantExpression>{};
+
   /// FIFO queue of work that needs to be completed before the returned AST
   /// nodes are correct.
   final Queue<WorkItem> workQueue = new Queue<WorkItem>();