Strict mode octal literals.

src/scanner-base.h

Index: src/scanner-base.h
diff --git a/src/scanner-base.h b/src/scanner-base.h
index 1024ad18582e3c078793d2295fe3cb8a92d23b18..a3e07d38872a21f1cf1b2fe93e23c5efea834cb0 100644
--- a/src/scanner-base.h
+++ b/src/scanner-base.h
@@ -247,6 +247,9 @@ class LiteralBuffer {
 // Generic functionality used by both JSON and JavaScript scanners.
 class Scanner {
  public:
+  // -1 is outside of the range of any real source code.
+  static const int kNoOctalLocation = -1;
+
   typedef unibrow::Utf8InputBuffer<1024> Utf8Decoder;
 
   class LiteralScope {
@@ -280,6 +283,10 @@ class Scanner {
   Location location() const { return current_.location; }
   Location peek_location() const { return next_.location; }
 
+  // Returns the location of the last seen octal literal
+  int octal_position() const { return octal_pos_; }
+  void clear_octal_position() { octal_pos_ = -1; }
+
   // Returns the literal string, if any, for the current token (the
   // token returned by Next()). The string is 0-terminated and in
   // UTF-8 format; they may contain 0-characters. Literal strings are
@@ -410,6 +417,8 @@ class Scanner {
   // Input stream. Must be initialized to an UC16CharacterStream.
   UC16CharacterStream* source_;
 
+  // Start position of the octal literal last scanned.
+  int octal_pos_;
 
   // One Unicode character look-ahead; c0_ < 0 at the end of the input.
   uc32 c0_;