Implement library access restrictions and privacy.

pkg/front_end/lib/src/fasta/builder/constructor_reference_builder.dart

Index: pkg/front_end/lib/src/fasta/builder/constructor_reference_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/builder/constructor_reference_builder.dart b/pkg/front_end/lib/src/fasta/builder/constructor_reference_builder.dart
index 881b5b33b3d32a612b29d8457a4d439bab1becab..c3b1b132741dccb5827ab28e3845ced0a8427e1a 100644
--- a/pkg/front_end/lib/src/fasta/builder/constructor_reference_builder.dart
+++ b/pkg/front_end/lib/src/fasta/builder/constructor_reference_builder.dart
@@ -5,7 +5,13 @@
 library fasta.constructor_reference_builder;
 
 import 'builder.dart'
-    show Builder, ClassBuilder, PrefixBuilder, Scope, TypeBuilder;
+    show
+        Builder,
+        ClassBuilder,
+        LibraryBuilder,
+        PrefixBuilder,
+        Scope,
+        TypeBuilder;
 
 import '../messages.dart' show warning;
 
@@ -25,7 +31,7 @@ class ConstructorReferenceBuilder extends Builder {
 
   String get fullNameForErrors => "$name${suffix == null ? '' : '.$suffix'}";
 
-  void resolveIn(Scope scope) {
+  void resolveIn(Scope scope, LibraryBuilder accessingLibrary) {
     int index = name.indexOf(".");
     Builder builder;
     if (index == -1) {
@@ -39,7 +45,8 @@ class ConstructorReferenceBuilder extends Builder {
         builder = prefix.lookup(middle, charOffset, fileUri);
       } else if (builder is ClassBuilder) {
         ClassBuilder cls = builder;
-        builder = cls.findConstructorOrFactory(middle, charOffset, fileUri);
+        builder = cls.findConstructorOrFactory(
+            middle, charOffset, fileUri, accessingLibrary);
         if (suffix == null) {
           target = builder;
           return;
@@ -47,8 +54,8 @@ class ConstructorReferenceBuilder extends Builder {
       }
     }
     if (builder is ClassBuilder) {
-      target =
-          builder.findConstructorOrFactory(suffix ?? "", charOffset, fileUri);
+      target = builder.findConstructorOrFactory(
+          suffix ?? "", charOffset, fileUri, accessingLibrary);
     }
     if (target == null) {
       warning(fileUri, charOffset,