[parser] Only log messages using the pending error handling

src/parsing/preparser.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cmath>
 
 #include "src/allocation.h"
 #include "src/base/logging.h"
 #include "src/conversions-inl.h"
 #include "src/conversions.h"
@@ skipping 115 matching lines @@
   Expect(Token::LBRACE, CHECK_OK_VALUE(kPreParseSuccess));
   LazyParsingResult result = ParseStatementListAndLogFunction(
       &formals, has_duplicate_parameters, may_abort, ok);
   use_counts_ = nullptr;
   track_unresolved_variables_ = false;
   if (result == kLazyParsingAborted) {
     return kPreParseAbort;
   } else if (stack_overflow()) {
     return kPreParseStackOverflow;
   } else if (!*ok) {
-    DCHECK(log_.has_error());
+    DCHECK(pending_error_handler_->has_pending_error());
   } else {
     DCHECK_EQ(Token::RBRACE, scanner()->peek());
 
     if (!IsArrowFunction(kind)) {
       // Validate parameter names. We can do this only after parsing the
       // function, since the function can declare itself strict.
       const bool allow_duplicate_parameters =
           is_sloppy(function_scope->language_mode()) && formals.is_simple &&
           !IsConciseMethod(kind);
       ValidateFormalParameters(function_scope->language_mode(),
@@ skipping 142 matching lines @@
     }
   }
 }
 
 #undef CHECK_OK
 #undef CHECK_OK_CUSTOM
 
 
 }  // namespace internal
 }  // namespace v8