Fix smi scanning

src/scanner.h

Index: src/scanner.h
diff --git a/src/scanner.h b/src/scanner.h
index 5162fbec12d0bfec37a7c8847e7a6400b84b58c0..ef5f01baec03a228c9517ae8b862024f9e10832b 100644
--- a/src/scanner.h
+++ b/src/scanner.h
@@ -436,7 +436,7 @@ class Scanner {
   void clear_octal_position() { octal_pos_ = Location::invalid(); }
 
   // Returns the value of the last smi that was scanned.
-  int smi_value() const { return smi_value_; }
+  int smi_value() const { return current_.smi_value_; }
 
   // Seek forward to the given position.  This operation does not
   // work in general, for instance when there are pushed back
@@ -491,6 +491,7 @@ class Scanner {
     Location location;
     LiteralBuffer* literal_chars;
     LiteralBuffer* raw_literal_chars;
+    int smi_value_;
   };
 
   static const int kCharacterLookaheadBufferSize = 1;
@@ -718,9 +719,6 @@ class Scanner {
   // Start position of the octal literal last scanned.
   Location octal_pos_;
 
-  // Value of the last smi that was scanned.
-  int smi_value_;
-
   // One Unicode character look-ahead; c0_ < 0 at the end of the input.
   uc32 c0_;