Refactor class declaration logic to the parser and runtime

src/parsing/preparser.cc

Index: src/parsing/preparser.cc
diff --git a/src/parsing/preparser.cc b/src/parsing/preparser.cc
index 08d5eafd4de581828aaa0d3090f2b0db9ddb1a64..9a978c11ae4e769ab5b106406aee7618aa3ca1b8 100644
--- a/src/parsing/preparser.cc
+++ b/src/parsing/preparser.cc
@@ -1258,6 +1258,12 @@ PreParserExpression PreParser::ParseClassLiteral(
 
   Expect(Token::RBRACE, CHECK_OK);
 
+  // We desugar class literals into a runtime function call which takes three
+  // new array literals as arguments, so we need to reserve indices for them.
+  function_state_->NextMaterializedLiteralIndex();
+  function_state_->NextMaterializedLiteralIndex();
+  function_state_->NextMaterializedLiteralIndex();
+
   return Expression::Default();
 }