Remove Script::SetData and the script_data parameter from Script::(Compile|New).

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 17a60fb4e2e81a9a88cca22f5388c9e3530de461..18fe68889ec94656ba7e52724bf83cc517397799 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -6517,9 +6517,6 @@ class Script: public Struct {
   // extracted.
   DECL_ACCESSORS(column_offset, Smi)
 
-  // [data]: additional data associated with this script.
-  DECL_ACCESSORS(data, Object)
-
   // [context_data]: context data for the context this script was compiled in.
   DECL_ACCESSORS(context_data, Object)
 
@@ -6573,8 +6570,7 @@ class Script: public Struct {
   static const int kNameOffset = kSourceOffset + kPointerSize;
   static const int kLineOffsetOffset = kNameOffset + kPointerSize;
   static const int kColumnOffsetOffset = kLineOffsetOffset + kPointerSize;
-  static const int kDataOffset = kColumnOffsetOffset + kPointerSize;
-  static const int kContextOffset = kDataOffset + kPointerSize;
+  static const int kContextOffset = kColumnOffsetOffset + kPointerSize;
   static const int kWrapperOffset = kContextOffset + kPointerSize;
   static const int kTypeOffset = kWrapperOffset + kPointerSize;
   static const int kLineEndsOffset = kTypeOffset + kPointerSize;