Issue 4048. Support for revised library/import syntax

compiler/java/com/google/dart/compiler/resolver/Scope.java

Index: compiler/java/com/google/dart/compiler/resolver/Scope.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/Scope.java b/compiler/java/com/google/dart/compiler/resolver/Scope.java
index 344ca256fdb24e66b817265e4fe20cefdb0de625..916d4b80de9f6dd00eefcd15f929a4dfdc4d295b 100644
--- a/compiler/java/com/google/dart/compiler/resolver/Scope.java
+++ b/compiler/java/com/google/dart/compiler/resolver/Scope.java
@@ -27,6 +27,8 @@ public class Scope {
   private final String name;
   private List<LabelElement> labels;
   private LibraryElement library;
+  private boolean stateProgress;
+  private boolean stateReady;
 
   @VisibleForTesting
   public Scope(String name, LibraryElement library, Scope parent) {
@@ -98,6 +100,22 @@ public class Scope {
     }
     return false;
   }
+  
+  public void markStateProgress() {
+    this.stateProgress = true;
+  }
+  
+  public boolean isStateProgress() {
+    return stateProgress;
+  }
+  
+  public void markStateReady() {
+    this.stateReady = true;
+  }
+  
+  public boolean isStateReady() {
+    return stateReady;
+  }
 
   public Map<String, Element> getElements() {
     return elements;