Improve the casing of Stackmap and Stacktrace.

runtime/vm/simulator_dbc.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_SIMULATOR_DBC_H_
 #define RUNTIME_VM_SIMULATOR_DBC_H_
 
 #ifndef RUNTIME_VM_SIMULATOR_H_
 #error Do not include simulator_dbc.h directly; use simulator.h.
 #endif
@@ skipping 66 matching lines @@
 #undef V
         kIntrinsicCount,
   };
 
   static bool IsSupportedIntrinsic(IntrinsicId id) {
     return intrinsics_[id] != NULL;
   }
 
   enum SpecialIndex {
     kExceptionSpecialIndex,
-    kStacktraceSpecialIndex,
+    kStackTraceSpecialIndex,
     kSpecialIndexCount
   };
 
  private:
   uintptr_t* stack_;
 
   RawObject** fp_;
   RawObject** sp_;
   uword pc_;
 
@@ skipping 63 matching lines @@
     last_setjmp_buffer_ = buffer;
   }
 
   friend class SimulatorSetjmpBuffer;
   DISALLOW_COPY_AND_ASSIGN(Simulator);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_SIMULATOR_DBC_H_