Handle null literal in compile_from_dill

pkg/compiler/lib/src/universe/resolution_world_builder.dart

Index: pkg/compiler/lib/src/universe/resolution_world_builder.dart
diff --git a/pkg/compiler/lib/src/universe/resolution_world_builder.dart b/pkg/compiler/lib/src/universe/resolution_world_builder.dart
index 6f00df791d3e52167c07825b3aa5964c53536555..1fb5ca910b9c3be4b0d7c8eb97ec4d3f331f53a7 100644
--- a/pkg/compiler/lib/src/universe/resolution_world_builder.dart
+++ b/pkg/compiler/lib/src/universe/resolution_world_builder.dart
@@ -339,6 +339,7 @@ abstract class ResolutionWorldBuilderBase
   final ElementEnvironment _elementEnvironment;
 
   final CommonElements _commonElements;
+  final ConstantSystem _constantSystem;
 
   final NativeBasicData _nativeBasicData;
   final NativeDataBuilder _nativeDataBuilder;
@@ -373,6 +374,7 @@ abstract class ResolutionWorldBuilderBase
   ResolutionWorldBuilderBase(
       this._elementEnvironment,
       this._commonElements,
+      this._constantSystem,
       this._nativeBasicData,
       this._nativeDataBuilder,
       this._interceptorDataBuilder,
@@ -930,6 +932,7 @@ abstract class KernelResolutionWorldBuilderBase
   KernelResolutionWorldBuilderBase(
       ElementEnvironment elementEnvironment,
       CommonElements commonElements,
+      ConstantSystem constantSystem,
       NativeBasicData nativeBasicData,
       NativeDataBuilder nativeDataBuilder,
       InterceptorDataBuilder interceptorDataBuilder,
@@ -938,6 +941,7 @@ abstract class KernelResolutionWorldBuilderBase
       : super(
             elementEnvironment,
             commonElements,
+            constantSystem,
             nativeBasicData,
             nativeDataBuilder,
             interceptorDataBuilder,
@@ -954,8 +958,7 @@ abstract class KernelResolutionWorldBuilderBase
         nativeData: _nativeDataBuilder.close(),
         interceptorData: _interceptorDataBuilder.close(),
         backendUsage: _backendUsageBuilder.close(),
-        // TODO(johnniwinther): Compute these.
-        constantSystem: null,
+        constantSystem: _constantSystem,
         resolutionWorldBuilder: this,
         functionSet: _allFunctions.close(),
         allTypedefs: _allTypedefs,