Fix a bug in deoptimization environments.

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 9c8e8348f15a1ea75e68c4f601e9e89d2e2e9b70..6c82f3d6df613f54ebcde31a7511c170f8535196 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1016,9 +1016,6 @@ void LChunkBuilder::DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block) {
   HInstruction* current = block->first();
   int start = chunk_->instructions()->length();
   while (current != NULL && !is_aborted()) {
-    if (FLAG_trace_environment) {
-      PrintF("Process instruction %d\n", current->id());
-    }
     // Code for constants in registers is generated lazily.
     if (!current->EmitAtUses()) {
       VisitInstruction(current);
@@ -1125,7 +1122,7 @@ LEnvironment* LChunkBuilder::CreateEnvironment(HEnvironment* hydrogen_env) {
   LEnvironment* outer = CreateEnvironment(hydrogen_env->outer());
   int ast_id = hydrogen_env->ast_id();
   ASSERT(ast_id != AstNode::kNoNumber);
-  int value_count = hydrogen_env->values()->length();
+  int value_count = hydrogen_env->length();
   LEnvironment* result = new LEnvironment(hydrogen_env->closure(),
                                           ast_id,
                                           hydrogen_env->parameter_count(),
@@ -2058,13 +2055,7 @@ LInstruction* LChunkBuilder::DoSimulate(HSimulate* instr) {
     }
   }
 
-  if (FLAG_trace_environment) {
-    PrintF("Reconstructed environment ast_id=%d, instr_id=%d\n",
-           instr->ast_id(),
-           instr->id());
-    env->PrintToStd();
-  }
-  ASSERT(env->values()->length() == instr->environment_height());
+  ASSERT(env->length() == instr->environment_length());
 
   // If there is an instruction pending deoptimization environment create a
   // lazy bailout instruction to capture the environment.