Add quotes around strings when generating source from the token stream.

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 3203 matching lines @@
   static void Copy(const String& dst,
                    intptr_t dst_offset,
                    const uint32_t* characters,
                    intptr_t len);
   static void Copy(const String& dst,
                    intptr_t dst_offset,
                    const String& src,
                    intptr_t src_offset,
                    intptr_t len);
 
+  static RawString* EscapeDoubleQuotes(const String& str);
+
   static RawString* Concat(const String& str1,
                            const String& str2,
                            Heap::Space space = Heap::kNew);
   static RawString* ConcatAll(const Array& strings,
                               Heap::Space space = Heap::kNew);
 
   static RawString* SubString(const String& str,
                               intptr_t begin_index,
                               Heap::Space space = Heap::kNew);
   static RawString* SubString(const String& str,
@@ skipping 51 matching lines @@
 class OneByteString : public String {
  public:
   virtual int32_t CharAt(intptr_t index) const {
     return *CharAddr(index);
   }
 
   virtual intptr_t CharSize() const {
     return kOneByteChar;
   }
 
+  RawOneByteString* EscapeDoubleQuotes() const;
+
   static intptr_t data_offset() { return OFFSET_OF(RawOneByteString, data_); }
 
   static intptr_t InstanceSize() {
     ASSERT(sizeof(RawOneByteString) == OFFSET_OF(RawOneByteString, data_));
     return 0;
   }
 
   static intptr_t InstanceSize(intptr_t len) {
     return RoundedAllocationSize(sizeof(RawOneByteString) + len);
   }
@@ skipping 39 matching lines @@
 class TwoByteString : public String {
  public:
   virtual int32_t CharAt(intptr_t index) const {
     return *CharAddr(index);
   }
 
   virtual intptr_t CharSize() const {
     return kTwoByteChar;
   }
 
+  RawTwoByteString* EscapeDoubleQuotes() const;
+
   static intptr_t InstanceSize() {
     ASSERT(sizeof(RawTwoByteString) == OFFSET_OF(RawTwoByteString, data_));
     return 0;
   }
 
   static intptr_t InstanceSize(intptr_t len) {
     return RoundedAllocationSize(sizeof(RawTwoByteString) + (2 * len));
   }
 
   static RawTwoByteString* New(intptr_t len,
@@ skipping 33 matching lines @@
 class FourByteString : public String {
  public:
   virtual int32_t CharAt(intptr_t index) const {
     return *CharAddr(index);
   }
 
   virtual intptr_t CharSize() const {
     return kFourByteChar;
   }
 
+  RawFourByteString* EscapeDoubleQuotes() const;
+
   static intptr_t InstanceSize() {
     ASSERT(sizeof(RawFourByteString) == OFFSET_OF(RawFourByteString, data_));
     return 0;
   }
 
   static intptr_t InstanceSize(intptr_t len) {
     return RoundedAllocationSize(sizeof(RawFourByteString) + (4 * len));
   }
 
   static RawFourByteString* New(intptr_t len,
@@ skipping 1677 matching lines @@
 }
 
 
 intptr_t Stackmap::SizeInBits() const {
   return (Smi::Value(raw_ptr()->bitmap_size_in_bytes_) * kBitsPerByte);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_