Resolve initialization order fiasco between code_descriptors.cc and token_position.cc.

runtime/vm/code_descriptors.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/code_descriptors.h"
 
 #include "vm/log.h"
 
 namespace dart {
 
@@ skipping 205 matching lines @@
   uint8_t* dest = reinterpret_cast<uint8_t*>(td.DataAddr(0));
   uint8_t* src = stream_.buffer();
   for (intptr_t i = 0; i < stream_.bytes_written(); i++) {
     dest[i] = src[i];
   }
   return td.raw();
 }
 
 
 const TokenPosition CodeSourceMapBuilder::kInitialPosition =
-    TokenPosition::kDartCodePrologue;
+    TokenPosition(TokenPosition::kDartCodeProloguePos);
 
 
 CodeSourceMapBuilder::CodeSourceMapBuilder(
     bool stack_traces_only,
     const GrowableArray<intptr_t>& caller_inline_id,
     const GrowableArray<TokenPosition>& inline_id_to_token_pos,
     const GrowableArray<const Function*>& inline_id_to_function)
     : buffered_pc_offset_(0),
       buffered_inline_id_stack_(),
       buffered_token_pos_stack_(),
@@ skipping 411 matching lines @@
         break;
       }
       default:
         UNREACHABLE();
     }
   }
   THR_Print("}\n");
 }
 
 }  // namespace dart