Fix number scanning

runtime/vm/scanner.cc

 // Copyright (c) 2012, 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.
 
 #include "vm/scanner.h"
 
 #include "platform/assert.h"
 #include "vm/flags.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
@@ skipping 359 matching lines @@
       if ((c0_ == '-') || (c0_ == '+')) {
         ReadChar();
       }
       if (!IsDecimalDigit(c0_)) {
         ErrorMsg("missing exponent digits");
         return;
       }
       while (IsDecimalDigit(c0_)) {
         ReadChar();
       }
-    } else if (IsIdentStartChar(c0_)) {
-      ErrorMsg("illegal character in number");
-      return;
     }
   }
   if (current_token_.kind != Token::kILLEGAL) {
     intptr_t len = lookahead_pos_ - token_start_;
     current_token_.literal =
         &String::ZoneHandle(
             String::SubString(source_, token_start_, len, Heap::kOld));
   }
 }
 
@@ skipping 557 matching lines @@
               "%c%#" Px "", kPrivateKeySeparator, key_value);
   const String& result = String::Handle(String::New(private_key, Heap::kOld));
   return result.raw();
 }
 
 
 void Scanner::InitOnce() {
 }
 
 }  // namespace dart