[turbofan] Remove special JSForInStep and JSForInDone.

src/interpreter/bytecode-generator.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/interpreter/bytecode-generator.h"
 
 #include "src/ast/scopes.h"
 #include "src/code-stubs.h"
 #include "src/compiler.h"
 #include "src/interpreter/bytecode-flags.h"
@@ skipping 1313 matching lines @@
   builder()->ForInPrepare(receiver, cache_type);
 
   // Set up loop counter
   Register index = register_allocator()->NewRegister();
   builder()->LoadLiteral(Smi::FromInt(0));
   builder()->StoreAccumulatorInRegister(index);
 
   // The loop
   VisitIterationHeader(stmt, &loop_builder);
   builder()->SetExpressionAsStatementPosition(stmt->each());
-  builder()->ForInDone(index, cache_length);
-  loop_builder.BreakIfTrue();
+  builder()->ForInContinue(index, cache_length);
+  loop_builder.BreakIfFalse();
   DCHECK(Register::AreContiguous(cache_type, cache_array));
   FeedbackVectorSlot slot = stmt->ForInFeedbackSlot();
   builder()->ForInNext(receiver, index, cache_type, feedback_index(slot));
   loop_builder.ContinueIfUndefined();
   VisitForInAssignment(stmt->each(), stmt->EachFeedbackSlot());
   VisitIterationBody(stmt, &loop_builder);
   builder()->ForInStep(index);
   builder()->StoreAccumulatorInRegister(index);
   loop_builder.JumpToHeader();
   loop_builder.EndLoop();
@@ skipping 2054 matching lines @@
   return execution_context()->scope()->language_mode();
 }
 
 int BytecodeGenerator::feedback_index(FeedbackVectorSlot slot) const {
   return TypeFeedbackVector::GetIndex(slot);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8