[es8] Throw SyntaxError when trying to tail call a direct eval.

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index 3ae2619a6562f24f56666df021e81b440f14eba8..aa2d0e87cedd1df11a6e7e2387be095ea5a25405 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -371,6 +371,12 @@ class ParserTraits {
     return expression->AsVariableProxy()->raw_name();
   }
 
+  bool IsDirectEvalCall(Expression* expression) {
+    if (!expression->IsCall()) return false;
+    expression = expression->AsCall()->expression();
+    return IsIdentifier(expression) && IsEval(AsIdentifier(expression));
+  }
+
   static bool IsBoilerplateProperty(ObjectLiteral::Property* property) {
     return ObjectLiteral::IsBoilerplateProperty(property);
   }