- Move MathNatives from dart:core to dart:math.

runtime/vm/scanner.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // Scanner class for the Dart language. The scanner reads source text
 // and produces a stream of tokens which is used by the parser.
 //
 
 #ifndef VM_SCANNER_H_
 #define VM_SCANNER_H_
@@ skipping 78 matching lines @@
   }
 
   static void InitOnce();
 
   // Allocated a private key which is used for name mangling.
   static RawString* AllocatePrivateKey(const Library& library);
 
   // Return true if str is an identifier.
   static bool IsIdent(const String& str);
 
+  // Does the token stream contain a valid literal. This is used to implement
+  // the Dart methods int.parse and double.parse.
+  static bool IsValidLiteral(const Scanner::GrowableTokenStream& tokens,
+                             Token::Kind literal_kind,
+                             bool* is_positive,
+                             String** value);
+
  private:
   struct ScanContext {
     ScanContext* next;
     char string_delimiter;
     bool string_is_multiline;
     int  brace_level;
   };
 
   struct KeywordTable {
     Token::Kind kind;
@@ skipping 107 matching lines @@
 
   SourcePosition c0_pos_;      // Source position of lookahead character c0_.
   KeywordTable keywords_[Token::numKeywords];
   Array& keyword_symbol_table_;  // Access to keyword symbols in object store.
 };
 
 
 }  // namespace dart
 
 #endif  // VM_SCANNER_H_