[heap] Clean-up uses of EnsureSweepingComplete uses.

src/isolate.cc

 // Copyright 2012 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/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
@@ skipping 2240 matching lines @@
   debug()->Unload();
 
   FreeThreadResources();
 
   if (concurrent_recompilation_enabled()) {
     optimizing_compile_dispatcher_->Stop();
     delete optimizing_compile_dispatcher_;
     optimizing_compile_dispatcher_ = NULL;
   }
 
-  if (heap_.mark_compact_collector()->sweeping_in_progress()) {
-    heap_.mark_compact_collector()->EnsureSweepingCompleted();
-  }
+  heap_.mark_compact_collector()->EnsureSweepingCompleted();
 
   DumpAndResetCompilationStats();
 
   if (FLAG_print_deopt_stress) {
     PrintF(stdout, "=== Stress deopt counter: %u\n", stress_deopt_count_);
   }
 
   if (cpu_profiler_) {
     cpu_profiler_->DeleteAllProfiles();
   }
@@ skipping 1285 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8