[interpreter] Add support for scalable operands.

src/objects-debug.cc

 // Copyright 2012 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/objects.h"
 
 #include "src/bootstrapper.h"
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/field-type.h"
@@ skipping 211 matching lines @@
 void Simd128Value::Simd128ValueVerify() { CHECK(IsSimd128Value()); }
 
 
 void ByteArray::ByteArrayVerify() {
   CHECK(IsByteArray());
 }
 
 
 void BytecodeArray::BytecodeArrayVerify() {
   // TODO(oth): Walk bytecodes and immediate values to validate sanity.
+  // - All bytecodes are known and well formed.
+  // - Jumps must go to new instructions starts.
+  // - No Illegal bytecodes.
+  // - No consecutive sequences of prefix Wide / ExtraWide.
   CHECK(IsBytecodeArray());
   CHECK(constant_pool()->IsFixedArray());
   VerifyHeapPointer(constant_pool());
 }
 
 
 void FreeSpace::FreeSpaceVerify() {
   CHECK(IsFreeSpace());
 }
 
@@ skipping 1081 matching lines @@
 
   // Both are done at the same time.
   CHECK_EQ(new_it.done(), old_it.done());
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8