Cleanups.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, 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 VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 3229 matching lines @@
     return EffectSet::None();
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PushTempInstr);
 };
 
 
 class DropTempsInstr : public Definition {
  public:
-  explicit DropTempsInstr(intptr_t num_temps, Value* value = NULL)
+  DropTempsInstr(intptr_t num_temps, Value* value)
       : num_temps_(num_temps), value_(NULL) {
     if (value != NULL) {
       SetInputAt(0, value);
     }
   }
 
   DECLARE_INSTRUCTION(DropTemps)
 
   virtual intptr_t InputCount() const { return value_ != NULL ? 1 : 0; }
   virtual Value* InputAt(intptr_t i) const {
@@ skipping 4709 matching lines @@
       Isolate* isolate, bool opt) const {                                     \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_