Centralize and standardize logic for ExpressionClassifier accumulation

src/parsing/preparser.cc

Index: src/parsing/preparser.cc
diff --git a/src/parsing/preparser.cc b/src/parsing/preparser.cc
index 9fa94a362e4085e10b3eba3ef77de059af11b500..6e5698b574d9eaa66060b0b869352ffc5f229621 100644
--- a/src/parsing/preparser.cc
+++ b/src/parsing/preparser.cc
@@ -1176,8 +1176,8 @@ PreParserExpression PreParser::ParseClassLiteral(
     CheckNoTailCallExpressions(&extends_classifier, CHECK_OK);
     ValidateExpression(&extends_classifier, CHECK_OK);
     if (classifier != nullptr) {
-      classifier->Accumulate(&extends_classifier,
-                             ExpressionClassifier::ExpressionProductions);
+      classifier->AccumulateFormalParameterContainmentErrors(
+          &extends_classifier);
     }
   }
 
@@ -1197,8 +1197,8 @@ PreParserExpression PreParser::ParseClassLiteral(
         &has_seen_constructor, &property_classifier, &name, CHECK_OK);
     ValidateExpression(&property_classifier, CHECK_OK);
     if (classifier != nullptr) {
-      classifier->Accumulate(&property_classifier,
-                             ExpressionClassifier::ExpressionProductions);
+      classifier->AccumulateFormalParameterContainmentErrors(
+          &property_classifier);
     }
   }