Use Feature directly in resolution.

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

Index: pkg/compiler/lib/src/resolution/registry.dart
diff --git a/pkg/compiler/lib/src/resolution/registry.dart b/pkg/compiler/lib/src/resolution/registry.dart
index 64df6d54cdc7707ab6d9d0084904283240634517..5ef981790af0a64c8be75c564a974033f254c50e 100644
--- a/pkg/compiler/lib/src/resolution/registry.dart
+++ b/pkg/compiler/lib/src/resolution/registry.dart
@@ -50,6 +50,7 @@ class _ResolutionWorldImpact extends ResolutionImpact with WorldImpactBuilder {
   Setlet<MapLiteralUse> _mapLiterals;
   Setlet<ListLiteralUse> _listLiterals;
   Setlet<String> _constSymbolNames;
+  Setlet<ConstantExpression> _constantLiterals;
 
   _ResolutionWorldImpact(this.name);
 
@@ -106,6 +107,18 @@ class _ResolutionWorldImpact extends ResolutionImpact with WorldImpactBuilder {
     return _features != null ? _features : const <Feature>[];
   }
 
+  void registerConstantLiteral(ConstantExpression constant) {
+    if (_constantLiterals == null) {
+      _constantLiterals = new Setlet<ConstantExpression>();
+    }
+    _constantLiterals.add(constant);
+  }
+
+  Iterable<ConstantExpression> get constantLiterals {
+    return _constantLiterals != null
+        ? _constantLiterals : const <ConstantExpression>[];
+  }
+
   String toString() => '_ResolutionWorldImpact($name)';
 }
 
@@ -292,30 +305,10 @@ class ResolutionRegistry extends Registry {
     worldImpact.registerStaticUse(staticUse);
   }
 
-  void registerLazyField() {
-    worldImpact.registerFeature(Feature.LAZY_FIELD);
-  }
-
   void registerMetadataConstant(MetadataAnnotation metadata) {
     backend.registerMetadataConstant(metadata, metadata.annotatedElement, this);
   }
 
-  void registerThrowRuntimeError() {
-    worldImpact.registerFeature(Feature.THROW_RUNTIME_ERROR);
-  }
-
-  void registerCompileTimeError(ErroneousElement error) {
-    worldImpact.registerFeature(Feature.COMPILE_TIME_ERROR);
-  }
-
-  void registerTypeVariableBoundCheck() {
-    worldImpact.registerFeature(Feature.TYPE_VARIABLE_BOUNDS_CHECK);
-  }
-
-  void registerThrowNoSuchMethod() {
-    worldImpact.registerFeature(Feature.THROW_NO_SUCH_METHOD);
-  }
-
   /// Register the use of a type.
   void registerTypeUse(TypeUse typeUse) {
     worldImpact.registerTypeUse(typeUse);
@@ -329,10 +322,6 @@ class ResolutionRegistry extends Registry {
     mapping.addSuperUse(node);
   }
 
-  void registerSuperNoSuchMethod() {
-    worldImpact.registerFeature(Feature.SUPER_NO_SUCH_METHOD);
-  }
-
   void registerTypeLiteral(Send node, DartType type) {
     mapping.setType(node, type);
     worldImpact.registerTypeUse(new TypeUse.typeLiteral(type));
@@ -369,36 +358,16 @@ class ResolutionRegistry extends Registry {
     worldImpact.registerDynamicUse(dynamicUse);
   }
 
-  void registerConstSymbol(String name) {
-    worldImpact.registerConstSymbolName(name);
-  }
-
-  void registerSymbolConstructor() {
-    worldImpact.registerFeature(Feature.SYMBOL_CONSTRUCTOR);
-  }
-
-  void registerAbstractClassInstantiation() {
-    worldImpact.registerFeature(Feature.ABSTRACT_CLASS_INSTANTIATION);
-  }
-
-  void registerStringInterpolation() {
-    worldImpact.registerFeature(Feature.STRING_INTERPOLATION);
-  }
-
-  void registerFallThroughError() {
-    worldImpact.registerFeature(Feature.FALL_THROUGH_ERROR);
-  }
-
-  void registerCatchStatement() {
-    worldImpact.registerFeature(Feature.CATCH_STATEMENT);
+  void registerFeature(Feature feature) {
+    worldImpact.registerFeature(feature);
   }
 
-  void registerStackTraceInCatch() {
-    worldImpact.registerFeature(Feature.STACK_TRACE_IN_CATCH);
+  void registerConstSymbol(String name) {
+    worldImpact.registerConstSymbolName(name);
   }
 
-  void registerSyncForIn(Node node) {
-    worldImpact.registerFeature(Feature.SYNC_FOR_IN);
+  void registerConstantLiteral(ConstantExpression constant) {
+    worldImpact.registerConstantLiteral(constant);
   }
 
   ClassElement defaultSuperclass(ClassElement element) {
@@ -410,19 +379,10 @@ class ResolutionRegistry extends Registry {
     universe.registerMixinUse(mixinApplication, mixin);
   }
 
-  void registerThrowExpression() {
-    worldImpact.registerFeature(Feature.THROW_EXPRESSION);
-  }
-
   void registerInstantiation(InterfaceType type) {
     worldImpact.registerTypeUse(new TypeUse.instantiation(type));
   }
 
-  void registerAssert(bool hasMessage) {
-    worldImpact.registerFeature(
-        hasMessage ? Feature.ASSERT_WITH_MESSAGE : Feature.ASSERT);
-  }
-
   void registerSendStructure(Send node, SendStructure sendStructure) {
     mapping.setSendStructure(node, sendStructure);
   }
@@ -433,30 +393,6 @@ class ResolutionRegistry extends Registry {
     return mapping.getSendStructure(node);
   }
 
-  void registerAsyncMarker(FunctionElement element) {
-    switch (element.asyncMarker) {
-      case AsyncMarker.SYNC:
-        break;
-      case AsyncMarker.SYNC_STAR:
-        worldImpact.registerFeature(Feature.SYNC_STAR);
-        break;
-      case AsyncMarker.ASYNC:
-        worldImpact.registerFeature(Feature.ASYNC);
-        break;
-      case AsyncMarker.ASYNC_STAR:
-        worldImpact.registerFeature(Feature.ASYNC_STAR);
-        break;
-    }
-  }
-
-  void registerAsyncForIn(AsyncForIn node) {
-    worldImpact.registerFeature(Feature.ASYNC_FOR_IN);
-  }
-
-  void registerIncDecOperation() {
-    worldImpact.registerFeature(Feature.INC_DEC_OPERATION);
-  }
-
   void registerTryStatement() {
     mapping.containsTryStatement = true;
   }