[interpreter] Add CreateBlockContext bytecode

src/interpreter/bytecode-array-builder.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-array-builder.h"
 
 #include "src/compiler.h"
 #include "src/globals.h"
 #include "src/interpreter/bytecode-array-writer.h"
 #include "src/interpreter/bytecode-dead-code-optimizer.h"
@@ skipping 320 matching lines @@
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::CreateClosure(size_t entry,
                                                           int flags) {
   Output(Bytecode::kCreateClosure, UnsignedOperand(entry),
          UnsignedOperand(flags));
   return *this;
 }
 
+BytecodeArrayBuilder& BytecodeArrayBuilder::CreateBlockContext(
+    Handle<ScopeInfo> scope_info) {
+  size_t entry = GetConstantPoolEntry(scope_info);
+  Output(Bytecode::kCreateBlockContext, UnsignedOperand(entry));
+  return *this;
+}
+
 BytecodeArrayBuilder& BytecodeArrayBuilder::CreateFunctionContext(int slots) {
   Output(Bytecode::kCreateFunctionContext, UnsignedOperand(slots));
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::CreateArguments(
     CreateArgumentsType type) {
   // TODO(rmcilroy): Consider passing the type as a bytecode operand rather
   // than having two different bytecodes once we have better support for
   // branches in the InterpreterAssembler.
@@ skipping 613 matching lines @@
       return Bytecode::kTailCall;
     default:
       UNREACHABLE();
   }
   return Bytecode::kIllegal;
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8