[turbofan] escape analysis bugfixes that got reverted with https://codereview.chromium.org/26809730…

src/compiler/pipeline.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/pipeline.h"
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <memory>
 #include <sstream>
 
@@ skipping 931 matching lines @@
   }
 };
 
 
 struct EscapeAnalysisPhase {
   static const char* phase_name() { return "escape analysis"; }
 
   void Run(PipelineData* data, Zone* temp_zone) {
     EscapeAnalysis escape_analysis(data->graph(), data->jsgraph()->common(),
                                    temp_zone);
-    escape_analysis.Run();
+    if (!escape_analysis.Run()) return;
     JSGraphReducer graph_reducer(data->jsgraph(), temp_zone);
     EscapeAnalysisReducer escape_reducer(&graph_reducer, data->jsgraph(),
                                          &escape_analysis, temp_zone);
     AddReducer(data, &graph_reducer, &escape_reducer);
     graph_reducer.ReduceGraph();
     if (escape_reducer.compilation_failed()) {
       data->set_compilation_failed();
       return;
     }
     escape_reducer.VerifyReplacement();
@@ skipping 1064 matching lines @@
   data->DeleteRegisterAllocationZone();
 }
 
 CompilationInfo* PipelineImpl::info() const { return data_->info(); }
 
 Isolate* PipelineImpl::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8