[iwyu] Make "access-info.h" header stand-alone.

R=jarin@chromium.org

Change-Id: Idf47ac88099915bd6db3621230c4f93f2bd7d3bd
Reviewed-on: https://chromium-review.googlesource.com/665117Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48008}

src/compiler/access-info.cc

@@ -224,6 +224,11 @@ bool PropertyAccessInfo::Merge(PropertyAccessInfo const* that,
   UNREACHABLE();
 }
 
+Handle<Cell> PropertyAccessInfo::export_cell() const {
+  DCHECK_EQ(kModuleExport, kind_);
+  return Handle<Cell>::cast(constant_);
+}
+
 AccessInfoFactory::AccessInfoFactory(CompilationDependencies* dependencies,
                                      Handle<Context> native_context, Zone* zone)
     : dependencies_(dependencies),

src/compiler/access-info.h

@@ -111,10 +111,7 @@ class PropertyAccessInfo final {
   }
   MaybeHandle<Map> field_map() const { return field_map_; }
   MapHandles const& receiver_maps() const { return receiver_maps_; }
-  Handle<Cell> export_cell() const {
-    DCHECK_EQ(kModuleExport, kind_);
-    return Handle<Cell>::cast(constant_);
-  }
+  Handle<Cell> export_cell() const;
 
  private:
   PropertyAccessInfo(MaybeHandle<JSObject> holder,

src/compiler/js-type-hint-lowering.cc

@@ -11,7 +11,6 @@
 #include "src/compiler/property-access-builder.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/feedback-vector.h"
-#include "src/handles-inl.h"
 #include "src/type-hints.h"
 
 namespace v8 {