Experimental scanner += API which takes Handle<String>.

tools/lexer_generator/code_generator.jinja

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 118 matching lines @@
   {%- endif -%}
 {%- endmacro -%}
 
 
 {%- macro long_char_create() -%}
   {%- if encoding == 'utf16'-%}
     const uint32_t long_char = primary_char;
   {%- elif encoding == 'utf8'-%}
     unsigned bytes_read = 0;
     const uint32_t long_char = unibrow::Utf8::CalculateValue(
-        reinterpret_cast<uint8_t*>(cursor_),
+        reinterpret_cast<const uint8_t*>(cursor_),
         buffer_end_ - cursor_,
         &bytes_read);
     cursor_ += bytes_read - 1;
     if (long_char == unibrow::Utf8::kBadChar) goto default_action;
   {%- else -%}
     uncompilable code for {{encoding}}
   {%- endif -%}
 {%- endmacro -%}
 
 
@@ skipping 161 matching lines @@
   FORWARD();
   goto code_start;
 
   fell_through:
   ((void(*)())0)(); // crash
   // force use of stored_token
   stored_token = Token::ILLEGAL;
 }
 } }