Introduces `ParserOptions`.

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 1f099153074fc537ac488a2fd8b831e85d540645..2f8108a1ee73d541667de5fa0e91a7e9eb573e3e 100644
--- a/pkg/compiler/lib/src/common/resolution.dart
+++ b/pkg/compiler/lib/src/common/resolution.dart
@@ -29,6 +29,8 @@ import '../elements/elements.dart' show
     TypeVariableElement;
 import '../enqueue.dart' show
     ResolutionEnqueuer;
+import '../options.dart' show
+    ParserOptions;
 import '../parser/element_listener.dart' show
     ScannerOptions;
 import '../tree/tree.dart' show
@@ -215,4 +217,5 @@ abstract class Parsing {
   void parsePatchClass(ClassElement cls);
   measure(f());
   ScannerOptions getScannerOptionsFor(Element element);
+  ParserOptions get parserOptions;
 }