Pass ClosedWorld directly to codegen tasks

pkg/compiler/lib/src/ssa/value_range_analyzer.dart

Index: pkg/compiler/lib/src/ssa/value_range_analyzer.dart
diff --git a/pkg/compiler/lib/src/ssa/value_range_analyzer.dart b/pkg/compiler/lib/src/ssa/value_range_analyzer.dart
index 67e861eb2d8eb7015107c12c98e5a0ab5f50bb08..2db8ae5b4328e64e2eeffa4c2064c6d4377b79f8 100644
--- a/pkg/compiler/lib/src/ssa/value_range_analyzer.dart
+++ b/pkg/compiler/lib/src/ssa/value_range_analyzer.dart
@@ -602,18 +602,18 @@ class SsaValueRangeAnalyzer extends HBaseVisitor implements OptimizationPhase {
   final Map<HInstruction, Range> ranges = new Map<HInstruction, Range>();
 
   final Compiler compiler;
+  final ClosedWorld closedWorld;
   final ConstantSystem constantSystem;
   final ValueRangeInfo info;
   final SsaOptimizerTask optimizer;
 
   HGraph graph;
 
-  SsaValueRangeAnalyzer(this.compiler, constantSystem, this.optimizer)
+  SsaValueRangeAnalyzer(
+      this.compiler, this.closedWorld, constantSystem, this.optimizer)
       : info = new ValueRangeInfo(constantSystem),
         this.constantSystem = constantSystem;
 
-  ClosedWorld get closedWorld => compiler.closedWorld;
-
   void visitGraph(HGraph graph) {
     this.graph = graph;
     visitDominatorTree(graph);