Put PushArgument into the environment instead of raw values.

runtime/vm/flow_graph_builder.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/flow_graph_builder.h"
 
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/code_descriptors.h"
 #include "vm/dart_entry.h"
@@ skipping 78 matching lines @@
     entry_ = do_instr;
   } else {
     exit()->set_next(do_instr);
   }
   exit_ = do_instr;
 }
 
 
 void EffectGraphVisitor::AddInstruction(Instruction* instruction) {
   ASSERT(is_open());
-  ASSERT(!instruction->IsDefinition());
+  ASSERT(!instruction->IsBind());
   ASSERT(!instruction->IsBlockEntry());
   DeallocateTempIndex(instruction->InputCount());
   if (is_empty()) {
     entry_ = exit_ = instruction;
   } else {
     exit()->set_next(instruction);
     exit_ = instruction;
   }
 }
 
@@ skipping 2634 matching lines @@
           // Assign fresh SSA temporary and update expression stack.
           bind->set_ssa_temp_index(alloc_ssa_temp_index());
           env->Add(new UseVal(bind));
         }
       }
     }
 
     // 2c. Handle pushed argument.
     PushArgumentInstr* push = current->AsPushArgument();
     if (push != NULL) {
-      env->Add(push->value());
+      env->Add(new UseVal(push));
     }
   }
 
   // 3. Process dominated blocks.
   for (intptr_t i = 0; i < block_entry->dominated_blocks().length(); ++i) {
     BlockEntryInstr* block = block_entry->dominated_blocks()[i];
     GrowableArray<Value*> new_env(env->length());
     new_env.AddArray(*env);
     RenameRecursive(block, &new_env, live_phis);
   }
@@ skipping 44 matching lines @@
   intptr_t len = OS::SNPrint(NULL, 0, kFormat, function_name, reason) + 1;
   char* chars = Isolate::Current()->current_zone()->Alloc<char>(len);
   OS::SNPrint(chars, len, kFormat, function_name, reason);
   const Error& error = Error::Handle(
       LanguageError::New(String::Handle(String::New(chars))));
   Isolate::Current()->long_jump_base()->Jump(1, error);
 }
 
 
 }  // namespace dart