Scanner for UTF-8 byte arrays

sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart

Index: sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
diff --git a/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart b/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
index 7c919df3a26a980f4d271a025a6c47cc0e7013cb..4168c72fa3789a2d3b5b8ff48505b263ff1cc93c 100644
--- a/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
+++ b/sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart
@@ -381,8 +381,8 @@ class DartBackend extends Backend {
     // Add synthesized constructors to classes with no resolved constructors,
     // but which originally had any constructor.  That should prevent
     // those classes from being instantiable with default constructor.
-    Identifier synthesizedIdentifier =
-        new Identifier(new StringToken(IDENTIFIER_INFO, '', -1));
+    Identifier synthesizedIdentifier = new Identifier(
+        new StringToken.fromString(IDENTIFIER_INFO, '', -1));
 
     NextClassElement:
     for (ClassElement classElement in classMembers.keys) {
@@ -408,10 +408,11 @@ class DartBackend extends Backend {
           );
       constructor.cachedNode = new FunctionExpression(
           new Send(classNode.name, synthesizedIdentifier),
-          new NodeList(new StringToken(OPEN_PAREN_INFO, '(', -1),
+          new NodeList(new StringToken.fromString(OPEN_PAREN_INFO, '(', -1),
                        const Link<Node>(),
-                       new StringToken(CLOSE_PAREN_INFO, ')', -1)),
-          new EmptyStatement(new StringToken(SEMICOLON_INFO, ';', -1)),
+                       new StringToken.fromString(CLOSE_PAREN_INFO, ')', -1)),
+          new EmptyStatement(
+              new StringToken.fromString(SEMICOLON_INFO, ';', -1)),
           null, Modifiers.EMPTY, null, null);
 
       if (!constructor.isSynthesized) {
@@ -506,7 +507,7 @@ class DartBackend extends Backend {
     int nonPlatformSize = 0;
     for (LibraryElement lib in referencedLibraries) {
       for (CompilationUnitElement compilationUnit in lib.compilationUnits) {
-        nonPlatformSize += compilationUnit.script.text.length;
+        nonPlatformSize += compilationUnit.script.file.length;
       }
     }
     int percentage = compiler.assembledCode.length * 100 ~/ nonPlatformSize;