Issue 6526 - Use the maybe version of Compile() and Run()

src/JsError.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 25 matching lines @@
     error << *v8::String::Utf8Value(isolate, message->GetScriptResourceName());
     error << ":";
     auto maybeLineNumber = message->GetLineNumber(isolate->GetCurrentContext());
     int lineNumber = 0;
     if (maybeLineNumber.To(&lineNumber))
       error << lineNumber;
     else
       error << "unknown line";
   }
   return error.str();
-}
+}
+
+JsError::JsError(const char* message, const char* filename, int line)
+  : std::runtime_error(ErrorToString(message, filename, line))
+{
+}
+
+std::string JsError::ErrorToString(const char* message, const char* filename, int line)
+{
+  std::stringstream error;
+  error << message;
+  error << filename;
+  error << ":";
+  error << line;
+  return error.str();
+}