Convert BinadryDoubleOp to MathUnaryInstr double-square if both inputs are the same. Uses less regi…

runtime/vm/il_printer.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/il_printer.h"
 
 #include "vm/intermediate_language.h"
 #include "vm/os.h"
 #include "vm/parser.h"
 
@@ skipping 566 matching lines @@
   instantiator()->PrintTo(f);
 }
 
 
 void AllocateContextInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%" Pd "", num_context_variables());
 }
 
 
 void MathUnaryInstr::PrintOperandsTo(BufferFormatter* f) const {
-  f->Print("'%s', ", MethodRecognizer::KindToCString(kind()));
+  f->Print("'%s', ", MathUnaryInstr::KindToCString(kind()));
   value()->PrintTo(f);
 }
 
 
 void MergedMathInstr::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("'%s', ", MergedMathInstr::KindToCString(kind()));
   Definition::PrintOperandsTo(f);
 }
 
 
@@ skipping 475 matching lines @@
 }
 
 const char* Environment::ToCString() const {
   char buffer[1024];
   BufferFormatter bf(buffer, 1024);
   PrintTo(&bf);
   return Isolate::Current()->current_zone()->MakeCopyOfString(buffer);
 }
 
 }  // namespace dart