Prevent NPE on Goto Declaration when completion mode FlashDevelop is chosen.

Author: elsassph

External/Plugins/HaXeContext/Context.cs

@@ -1404,7 +1404,7 @@ internal void OnFunctionCompletionResult(HaxeComplete hc, HaxeCompleteResult res
 
         public override bool HandleGotoDeclaration(ScintillaControl sci, ASExpr expression)
         {
-            if (GetCurrentSDKVersion().IsOlderThan(new SemVer("3.2.0")))
+            if (hxsettings.CompletionMode == HaxeCompletionModeEnum.FlashDevelop || GetCurrentSDKVersion().IsOlderThan(new SemVer("3.2.0")))
                 return false;
 
             var hc = new HaxeComplete(sci, expression, false, completionModeHandler, HaxeCompilerService.POSITION);
@@ -1462,6 +1462,8 @@ public override string GetCompilerPath()
         /// </summary>
         public override void CheckSyntax()
         {
+            if (hxsettings.CompletionMode == HaxeCompletionModeEnum.FlashDevelop || PluginBase.MainForm.CurrentDocument.IsUntitled) return;
+
             EventManager.DispatchEvent(this, new NotifyEvent(EventType.ProcessStart));
             var hc = new HaxeComplete(ASContext.CurSciControl, new ASExpr(), false, completionModeHandler, HaxeCompilerService.COMPLETION);
             hc.GetList(OnCheckSyntaxResult);