Deferred (aka lazy) loading of static functions.

dart/sdk/lib/_internal/compiler/implementation/tree/nodes.dart

Index: dart/sdk/lib/_internal/compiler/implementation/tree/nodes.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/tree/nodes.dart b/dart/sdk/lib/_internal/compiler/implementation/tree/nodes.dart
index 9875b254ada47a304e593c6a2ae888ac3e16d92a..37bf6253330624f75ce6dcd2882157726b383658 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/tree/nodes.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/tree/nodes.dart
@@ -1715,6 +1715,10 @@ class ScriptTag extends Node {
 }
 
 abstract class LibraryTag extends Node {
+  final Link<MetadataAnnotation> metadata;
+
+  LibraryTag(this.metadata);
+
   bool get isLibraryName => false;
   bool get isImport => false;
   bool get isExport => false;
@@ -1727,7 +1731,10 @@ class LibraryName extends LibraryTag {
 
   final Token libraryKeyword;
 
-  LibraryName(this.libraryKeyword, this.name);
+  LibraryName(this.libraryKeyword,
+              this.name,
+              Link<MetadataAnnotation> metadata)
+    : super(metadata);
 
   bool get isLibraryName => true;
 
@@ -1751,7 +1758,10 @@ abstract class LibraryDependency extends LibraryTag {
   final StringNode uri;
   final NodeList combinators;
 
-  LibraryDependency(this.uri, this.combinators);
+  LibraryDependency(this.uri,
+                    this.combinators,
+                    Link<MetadataAnnotation> metadata)
+    : super(metadata);
 }
 
 /**
@@ -1766,8 +1776,9 @@ class Import extends LibraryDependency {
   final Token importKeyword;
 
   Import(this.importKeyword, StringNode uri,
-         this.prefix, NodeList combinators)
-      : super(uri, combinators);
+         this.prefix, NodeList combinators,
+         Link<MetadataAnnotation> metadata)
+      : super(uri, combinators, metadata);
 
   bool get isImport => true;
 
@@ -1829,7 +1840,8 @@ class Part extends LibraryTag {
 
   final Token partKeyword;
 
-  Part(this.partKeyword, this.uri);
+  Part(this.partKeyword, this.uri, Link<MetadataAnnotation> metadata)
+    : super(metadata);
 
   bool get isPart => true;
 
@@ -1849,7 +1861,9 @@ class PartOf extends Node {
 
   final Token partKeyword;
 
-  PartOf(this.partKeyword, this.name);
+  final Link<MetadataAnnotation> metadata;
+
+  PartOf(this.partKeyword, this.name, this.metadata);
 
   Token get ofKeyword => partKeyword.next;