[interpreter] Add support for scalable operands.

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index 412c0d34356c56e3988c29f9da2418c6d2a00721..c7a6f95bc8088d29537f9427f480aa2775eb6350 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -1135,7 +1135,7 @@ void BytecodeGenerator::VisitForInStatement(ForInStatement* stmt) {
   Register cache_type = register_allocator()->NextConsecutiveRegister();
   Register cache_array = register_allocator()->NextConsecutiveRegister();
   Register cache_length = register_allocator()->NextConsecutiveRegister();
-  // Used as kRegTriple8 and kRegPair8 in ForInPrepare and ForInNext.
+  // Used as kRegTriple and kRegPair in ForInPrepare and ForInNext.
   USE(cache_array);
   builder()->ForInPrepare(cache_type);