Do not qualify with dart:: except where necessary

runtime/vm/kernel.h

 // Copyright (c) 2016, 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.
 
 #ifndef RUNTIME_VM_KERNEL_H_
 #define RUNTIME_VM_KERNEL_H_
 
 #if !defined(DART_PRECOMPILED_RUNTIME)
 #include "platform/assert.h"
 #include "vm/allocation.h"
@@ skipping 64 matching lines @@
 
   // The offset from the start of the binary to the canonical name table.
   intptr_t name_table_offset_;
 
   const uint8_t* kernel_data_;
   intptr_t kernel_data_size_;
 
   DISALLOW_COPY_AND_ASSIGN(Program);
 };
 
-ParsedFunction* ParseStaticFieldInitializer(Zone* zone,
-                                            const dart::Field& field);
+ParsedFunction* ParseStaticFieldInitializer(Zone* zone, const Field& field);
 
 }  // namespace kernel
 
 kernel::Program* ReadPrecompiledKernelFromBuffer(const uint8_t* buffer,
                                                  intptr_t buffer_length);
 
 }  // namespace dart
 
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)
 #endif  // RUNTIME_VM_KERNEL_H_