[parser] Refactor ParseSuperExpression

Throw error when accessing private field on super.

Bug: v8:8872
Change-Id: Iad383890fafbdccdd6b6b75a8f9eb32c9d6f5044
Reviewed-on: https://chromium-review.googlesource.com/c/1478219Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59746}

src/message-template.h

@@ -478,6 +478,7 @@ namespace internal {
   T(TypedArrayTooShort,                                                        \
     "Derived TypedArray constructor created an array which was too small")     \
   T(UnexpectedEOS, "Unexpected end of input")                                  \
+  T(UnexpectedPrivateField, "Unexpected private field")                        \
   T(UnexpectedReserved, "Unexpected reserved word")                            \
   T(UnexpectedStrictReserved, "Unexpected strict mode reserved word")          \
   T(UnexpectedSuper, "'super' keyword unexpected here")                        \

src/parsing/parser-base.h

@@ -3318,6 +3318,13 @@ typename ParserBase<Impl>::ExpressionT ParserBase<Impl>::ParseSuperExpression(
   if (IsConciseMethod(kind) || IsAccessorFunction(kind) ||
       IsClassConstructor(kind)) {
     if (Token::IsProperty(peek())) {
+      if (peek() == Token::PERIOD && PeekAhead() == Token::PRIVATE_NAME) {
+        Consume(Token::PERIOD);
+        Consume(Token::PRIVATE_NAME);
+
+        impl()->ReportMessage(MessageTemplate::kUnexpectedPrivateField);
+        return impl()->FailureExpression();
+      }
       scope->RecordSuperPropertyUsage();
       UseThis();
       return impl()->NewSuperPropertyReference(pos);

test/test262/test262.status

@@ -588,10 +588,6 @@
   'language/comments/hashbang/preceding-whitespace': [FAIL],
   'language/comments/hashbang/use-strict': [FAIL],
 
-  # https://bugs.chromium.org/p/v8/issues/detail?id=8872
-  'language/statements/class/elements/syntax/early-errors/grammar-private-field-super-access': [SKIP],
-  'language/expressions/class/elements/syntax/early-errors/grammar-private-field-super-access': [SKIP],
-
   ######################## NEEDS INVESTIGATION ###########################
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=7833