Use packages dart_parser, dart_scanner, and compiler_util.

pkg/compiler/lib/src/common/resolution.dart

Index: pkg/compiler/lib/src/common/resolution.dart
diff --git a/pkg/compiler/lib/src/common/resolution.dart b/pkg/compiler/lib/src/common/resolution.dart
index 0ccd78e506942e2c2da01c9ce926c72efe0ff909..3e3bf22c0277cc148e36b1d8312b4885d0581b3b 100644
--- a/pkg/compiler/lib/src/common/resolution.dart
+++ b/pkg/compiler/lib/src/common/resolution.dart
@@ -31,6 +31,7 @@ import '../mirrors_used.dart';
 import '../options.dart' show CompilerOptions;
 import '../parser/element_listener.dart' show ScannerOptions;
 import '../parser/parser_task.dart';
+import '../scanner/scanner_task.dart';
 import '../patch_parser.dart';
 import '../resolution/resolution.dart';
 import '../tree/tree.dart' show Send, TypeAnnotation;
@@ -216,10 +217,12 @@ abstract class Resolution implements Frontend {
 /// A container of commonly used dependencies for tasks that involve parsing.
 abstract class ParsingContext {
   factory ParsingContext(DiagnosticReporter reporter, ParserTask parser,
-      PatchParserTask patchParser, Backend backend) = _ParsingContext;
+      ScannerTask scanner, PatchParserTask patchParser, Backend backend)
+      = _ParsingContext;
 
   DiagnosticReporter get reporter;
   ParserTask get parser;
+  ScannerTask get scanner;
   PatchParserTask get patchParser;
 
   /// Use [patchParser] directly instead.
@@ -237,10 +240,12 @@ abstract class ParsingContext {
 class _ParsingContext implements ParsingContext {
   final DiagnosticReporter reporter;
   final ParserTask parser;
+  final ScannerTask scanner;
   final PatchParserTask patchParser;
   final Backend backend;
 
-  _ParsingContext(this.reporter, this.parser, this.patchParser, this.backend);
+  _ParsingContext(this.reporter, this.parser, this.scanner, this.patchParser,
+      this.backend);
 
   @override
   measure(f()) => parser.measure(f);