Store the scope info in catch contexts

src/compiler/access-builder.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/access-builder.h"
 
 #include "src/compiler/type-cache.h"
 #include "src/contexts.h"
 #include "src/frames.h"
 #include "src/handles-inl.h"
@@ skipping 725 matching lines @@
                               MachineType::Float64(), kNoWriteBarrier};
       return access;
     }
   }
   UNREACHABLE();
   ElementAccess access = {kUntaggedBase, 0, Type::None(), MachineType::None(),
                           kNoWriteBarrier};
   return access;
 }
 
+// static
+FieldAccess AccessBuilder::ForContextExtensionScopeInfo() {

[Michael Starzinger, 2016/09/05 11:35:29]

nit: Likewise, lets move it up to before "elements" to the other "fields".

[jochen (gone - plz use gerrit), 2016/09/05 11:42:44]

done

+  FieldAccess access = {
+      kTaggedBase, ContextExtension::kScopeInfoOffset, Handle<Name>(),
+      Type::Any(), MachineType::AnyTagged(),           kFullWriteBarrier};

[Michael Starzinger, 2016/09/05 11:35:29]

nit: Lets use Type::OtherInternal instead.

[jochen (gone - plz use gerrit), 2016/09/05 11:42:44]

done

+  return access;
+}
+
+// static
+FieldAccess AccessBuilder::ForContextExtensionExtension() {
+  FieldAccess access = {
+      kTaggedBase, ContextExtension::kExtensionOffset, Handle<Name>(),
+      Type::Any(), MachineType::AnyTagged(),           kFullWriteBarrier};
+  return access;
+}
+
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8