Don't crash when preparsing destructured arguments

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 8d180f06a643abb27dbc00ed45474ffc24974fa8..b67a349f8c0383b0449bc50c3bba6e1849f9908c 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -4196,9 +4196,8 @@ FunctionLiteral* Parser::ParseFunctionLiteral(
                            &expected_property_count, /*CHECK_OK*/ ok,
                            maybe_bookmark);
 
-      if (formals.materialized_literals_count > 0) {
-        materialized_literal_count += formals.materialized_literals_count;
-      }
+      materialized_literal_count += formals.materialized_literals_count +
+                                    function_state.materialized_literal_count();
 
       if (bookmark.HasBeenReset()) {
         // Trigger eager (re-)parsing, just below this block.