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

vm/snapshot_test.cc

Index: vm/snapshot_test.cc
===================================================================
--- vm/snapshot_test.cc	(revision 9471)
+++ vm/snapshot_test.cc	(working copy)
@@ -720,6 +720,10 @@
       "class A {\n"
       "  static bar() { return 42; }\n"
       "  static fly() { return 5; }\n"
+      "  static s1() { return 'this is a string in the source'; }\n"
+      "  static s2() { return 'this is a \"string\" in the source'; }\n"
+      "  static s3() { return 'this is a \\\'string\\\' in \"the\" source'; }\n"
+      "  static s4() { return 'this \"is\" a \"string\" in \"the\" source'; }\n"
       "}\n";
 
   String& url = String::Handle(String::New("dart-test:SerializeScript"));
@@ -764,6 +768,7 @@
   // Rescan this source and compare the token stream to see if they are
   // the same.
   str ^= serialized_tokens.GenerateSource();
+  OS::Print("%s", str.ToCString());

[cshapiro, 2012/07/10 19:03:27]

Is this supposed to be here?

[siva, 2012/07/10 22:59:10]

Removed this line, it was there for verifying what the output looked like.

On 2012/07/10 19:03:27, cshapiro wrote:

   const String& dummy_key = String::Handle(String::New(""));
   Scanner scanner(str, dummy_key);
   const TokenStream& reconstructed_tokens =