* fix for Unity 2017

* fix GC for ArrayIndexer

Author: ps5mh

Assets/XLua/Src/Editor/Xlua.Core.Editor.asmdef

@@ -1,17 +1,10 @@
 {
     "name": "Xlua.Core.Editor",
     "references": [
-        "GUID:5b37a11e6fbbe2542aa3580b9973df17"
+        "Xlua.Core"
     ],
     "includePlatforms": [
         "Editor"
     ],
-    "excludePlatforms": [],
-    "allowUnsafeCode": false,
-    "overrideReferences": false,
-    "precompiledReferences": [],
-    "autoReferenced": true,
-    "defineConstraints": [],
-    "versionDefines": [],
-    "noEngineReferences": false
+    "excludePlatforms": []
 }

Assets/XLua/Src/InternalGlobals.cs

@@ -76,6 +76,12 @@ internal static bool Gen_Flag
                 return initState == 1;
             }
         }
+
+        internal static Delegate ConvertDelegate(Delegate sourceDelegate, Type targetType)
+        {
+            return Delegate.CreateDelegate(targetType, sourceDelegate.Target, sourceDelegate.Method);
+        }
+
         internal static void Init()
         {
             if(Interlocked.CompareExchange(ref initState, 0, -1) != -1)
@@ -91,8 +97,8 @@ internal static void Init()
             var parameters = new object[] {null, null, null};
             Init.Invoke(null, parameters);
             extensionMethodMap = parameters[0] as Dictionary<Type, IEnumerable<MethodInfo>>;
-            genTryArrayGetPtr = parameters[1] as TryArrayGet;
-            genTryArraySetPtr = parameters[2] as TryArraySet;
+            genTryArrayGetPtr = ConvertDelegate(parameters[1] as Delegate, typeof(TryArrayGet)) as TryArrayGet;
+            genTryArraySetPtr = ConvertDelegate(parameters[2] as Delegate, typeof(TryArraySet)) as TryArraySet;
         }
     }