Fixed the issue that when coreclr references a dll in a path containi…

…ng special symbols, the path is garbled and causes reading failure.

src/double/Edge.js/dotnetcore/coreclrembedding.cs

@@ -667,7 +667,7 @@ private static Assembly Assembly_Resolving(AssemblyLoadContext arg1, AssemblyNam
     }
 
     [SecurityCritical]
-    public static IntPtr GetFunc(string assemblyFile, string typeName, string methodName, IntPtr exception)
+    public static IntPtr GetFunc([MarshalAs(UnmanagedType.LPUTF8Str)]string assemblyFile, string typeName, string methodName, IntPtr exception)
     {
         try
         {