dart2js cps: Do redundant join elimination after inlining.

pkg/compiler/lib/src/js_backend/codegen/task.dart

Index: pkg/compiler/lib/src/js_backend/codegen/task.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen/task.dart b/pkg/compiler/lib/src/js_backend/codegen/task.dart
index 034dd10ca8f3d3a0c16791144b881867b9ef0c21..1699625be5723240c4e0dbee6eb91bc66a2e0881 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/task.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/task.dart
@@ -219,6 +219,8 @@ class CpsFunctionCompiler implements FunctionCompiler {
 
   void optimizeCpsAfterInlining(cps.FunctionDefinition cpsFunction) {
     cpsOptimizationTask.measure(() {
+      applyCpsPass(new RedundantJoinEliminator(), cpsFunction);
+      applyCpsPass(new ShrinkingReducer(), cpsFunction);
       applyCpsPass(new RedundantRefinementEliminator(typeSystem), cpsFunction);
       applyCpsPass(new EagerlyLoadStatics(), cpsFunction);
       applyCpsPass(new GVN(compiler, typeSystem), cpsFunction);