Implement KernelNoSuchMethodResolver.

pkg/compiler/lib/src/js_backend/no_such_method_registry.dart

Index: pkg/compiler/lib/src/js_backend/no_such_method_registry.dart
diff --git a/pkg/compiler/lib/src/js_backend/no_such_method_registry.dart b/pkg/compiler/lib/src/js_backend/no_such_method_registry.dart
index a401e0585eb1de672ccca32915527e929a9f714e..b8f655ec1ce91fb7742780dc9065ef0d55889d48 100644
--- a/pkg/compiler/lib/src/js_backend/no_such_method_registry.dart
+++ b/pkg/compiler/lib/src/js_backend/no_such_method_registry.dart
@@ -70,9 +70,9 @@ class NoSuchMethodRegistry {
   final Set<FunctionEntity> _uncategorizedImpls = new Set<FunctionEntity>();
 
   final CommonElements _commonElements;
-  final NoSuchMethodResolver _resolver;
+  final NoSuchMethodResolver resolver;
 
-  NoSuchMethodRegistry(this._commonElements, this._resolver);
+  NoSuchMethodRegistry(this._commonElements, this.resolver);
 
   bool get hasThrowingNoSuchMethod => throwingImpls.isNotEmpty;
   bool get hasComplexNoSuchMethod => otherImpls.isNotEmpty;
@@ -104,17 +104,17 @@ class NoSuchMethodRegistry {
   /// Emits a diagnostic
   void emitDiagnostic(DiagnosticReporter reporter) {
     throwingImpls.forEach((e) {
-      if (!_resolver.hasForwardingSyntax(e)) {
+      if (!resolver.hasForwardingSyntax(e)) {
         reporter.reportHintMessage(e, MessageKind.DIRECTLY_THROWING_NSM);
       }
     });
     complexNoReturnImpls.forEach((e) {
-      if (!_resolver.hasForwardingSyntax(e)) {
+      if (!resolver.hasForwardingSyntax(e)) {
         reporter.reportHintMessage(e, MessageKind.COMPLEX_THROWING_NSM);
       }
     });
     complexReturningImpls.forEach((e) {
-      if (!_resolver.hasForwardingSyntax(e)) {
+      if (!resolver.hasForwardingSyntax(e)) {
         reporter.reportHintMessage(e, MessageKind.COMPLEX_RETURNING_NSM);
       }
     });
@@ -149,10 +149,10 @@ class NoSuchMethodRegistry {
     if (_commonElements.isDefaultNoSuchMethodImplementation(element)) {
       defaultImpls.add(element);
       return NsmCategory.DEFAULT;
-    } else if (_resolver.hasForwardingSyntax(element)) {
+    } else if (resolver.hasForwardingSyntax(element)) {
       // If the implementation is 'noSuchMethod(x) => super.noSuchMethod(x);'
       // then it is in the same category as the super call.
-      FunctionEntity superCall = _resolver.getSuperNoSuchMethod(element);
+      FunctionEntity superCall = resolver.getSuperNoSuchMethod(element);
       NsmCategory category = _categorizeImpl(superCall);
       switch (category) {
         case NsmCategory.DEFAULT:
@@ -172,7 +172,7 @@ class NoSuchMethodRegistry {
           break;
       }
       return category;
-    } else if (_resolver.hasThrowingSyntax(element)) {
+    } else if (resolver.hasThrowingSyntax(element)) {
       throwingImpls.add(element);
       return NsmCategory.THROWING;
     } else {