Make isolate.h usable without objects-inl.h header.

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <sstream>
 
 #include "src/allocation-site-scopes.h"
 #include "src/ast-numbering.h"
@@ skipping 17 matching lines @@
 #include "src/hydrogen-redundant-phi.h"
 #include "src/hydrogen-removable-simulates.h"
 #include "src/hydrogen-representation-changes.h"
 #include "src/hydrogen-sce.h"
 #include "src/hydrogen-store-elimination.h"
 #include "src/hydrogen-uint32-analysis.h"
 #include "src/ic/call-optimization.h"
 #include "src/ic/ic.h"
 // GetRootConstructor
 #include "src/ic/ic-inl.h"
+#include "src/isolate-inl.h"
 #include "src/lithium-allocator.h"
 #include "src/parser.h"
 #include "src/runtime/runtime.h"
 #include "src/scopeinfo.h"
 #include "src/typing.h"
 
 #if V8_TARGET_ARCH_IA32
 #include "src/ia32/lithium-codegen-ia32.h"  // NOLINT
 #elif V8_TARGET_ARCH_X64
 #include "src/x64/lithium-codegen-x64.h"  // NOLINT
@@ skipping 13406 matching lines @@
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 }  // namespace internal
 }  // namespace v8