[Isolates] Merge 6500:6700 from bleeding_edge to isolates.

src/scanner-base.h

Index: src/scanner-base.h
===================================================================
--- src/scanner-base.h	(revision 7006)
+++ src/scanner-base.h	(working copy)
@@ -417,6 +417,8 @@
   }
 
   uc32 ScanHexEscape(uc32 c, int length);
+
+  // Scans octal escape sequence. Also accepts "\0" decimal escape sequence.
   uc32 ScanOctalEscape(uc32 c, int length);
 
   // Return the current source position.
@@ -572,10 +574,17 @@
     CON,
     D,
     DE,
+    E,
+    EX,
     F,
     I,
+    IM,
+    IMP,
     IN,
     N,
+    P,
+    PR,
+    S,
     T,
     TH,
     TR,
@@ -591,7 +600,7 @@
 
   // Range of possible first characters of a keyword.
   static const unsigned int kFirstCharRangeMin = 'b';
-  static const unsigned int kFirstCharRangeMax = 'w';
+  static const unsigned int kFirstCharRangeMax = 'y';
   static const unsigned int kFirstCharRangeLength =
       kFirstCharRangeMax - kFirstCharRangeMin + 1;
   // State map for first keyword character range.