[Parser] Remove Variable::is_possibly_eval.

src/parsing/preparser.h

Index: src/parsing/preparser.h
diff --git a/src/parsing/preparser.h b/src/parsing/preparser.h
index 26ddf233b4f3a91663400c4f8f097c297b1a1e3f..c40215428eb09900fcaccf942b9b073a65dacdef 100644
--- a/src/parsing/preparser.h
+++ b/src/parsing/preparser.h
@@ -521,9 +521,10 @@ class PreParserFactory {
     return PreParserExpression::Default();
   }
   PreParserExpression NewCall(PreParserExpression expression,
-                              PreParserExpressionList arguments,
-                              int pos) {
-    if (expression.IsIdentifier() && expression.AsIdentifier().IsEval()) {
+                              PreParserExpressionList arguments, int pos,
+                              Call::PossiblyEval possibly_eval) {
+    if (possibly_eval == Call::IS_POSSIBLY_EVAL) {
+      DCHECK(expression.IsIdentifier() && expression.AsIdentifier().IsEval());
       return PreParserExpression::CallEval();
     }
     return PreParserExpression::Call();
@@ -1176,7 +1177,7 @@ void PreParserTraits::MaterializeUnspreadArgumentsLiterals(int count) {
 PreParserExpression PreParserTraits::SpreadCall(PreParserExpression function,
                                                 PreParserExpressionList args,
                                                 int pos) {
-  return pre_parser_->factory()->NewCall(function, args, pos);
+  return pre_parser_->factory()->NewCall(function, args, pos, Call::NOT_EVAL);
 }
 
 PreParserExpression PreParserTraits::SpreadCallNew(PreParserExpression function,