Remove script source from the snapshot in order to reduce the size and to make the image size small…

vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 1577 matching lines @@
  public:
   inline intptr_t Length() const;
 
   inline Token::Kind KindAt(intptr_t index) const;
 
   void SetTokenAt(intptr_t index, Token::Kind kind, const String& literal);
   void SetTokenAt(intptr_t index, const Object& token);
 
   RawObject* TokenAt(intptr_t index) const;
   RawString* LiteralAt(intptr_t index) const;
+  RawString* GenerateSource() const;
 
   static intptr_t InstanceSize() {
     ASSERT(sizeof(RawTokenStream) == OFFSET_OF(RawTokenStream, data_));
     return 0;
   }
   static intptr_t InstanceSize(intptr_t len) {
     return RoundedAllocationSize(sizeof(RawTokenStream) + (len * kWordSize));
   }
   static intptr_t StreamLength(intptr_t len) {
     return len;
@@ skipping 15 matching lines @@
   }
 
   HEAP_OBJECT_IMPLEMENTATION(TokenStream, Object);
   friend class Class;
 };
 
 
 class Script : public Object {
  public:
   RawString* url() const { return raw_ptr()->url_; }
-  RawString* source() const { return raw_ptr()->source_; }
+  RawString* source() const;
   RawScript::Kind kind() const { return raw_ptr()->kind_; }
 
   RawTokenStream* tokens() const { return raw_ptr()->tokens_; }
 
   void Tokenize(const String& private_key) const;
 
   RawString* GetLine(intptr_t line_number) const;
 
   RawString* GetSnippet(intptr_t from_line,
                         intptr_t from_column,
@@ skipping 3305 matching lines @@
 }
 
 
 intptr_t Stackmap::SizeInBits() const {
   return (Smi::Value(raw_ptr()->bitmap_size_in_bytes_) * kBitsPerByte);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_