Made some fixes for not having a resolve compiler enabled

IDE/src/Compiler/BfCompiler.bf

@@ -752,6 +752,7 @@ namespace IDE.Compiler
 			{
                 if (mWantsRemoveOldData)
 				{
+					mBfSystem.RemoveOldParsers();
 					mBfSystem.RemoveOldData();
 					mWantsRemoveOldData = false;
 				}

IDE/src/IDEApp.bf

@@ -546,8 +546,10 @@ namespace IDE
 
         public void GetBfCompilers(List<BfCompiler> compiler)
         {
-            compiler.Add(mBfBuildCompiler);
-            compiler.Add(mBfResolveCompiler);
+			if (mBfBuildCompiler != null)
+            	compiler.Add(mBfBuildCompiler);
+			if (mBfResolveCompiler != null)
+            	compiler.Add(mBfResolveCompiler);
         }
 
         public bool HaveSourcesChanged()
@@ -2676,7 +2678,8 @@ namespace IDE
 
 			mWorkspace.FixOptions(mConfigName, mPlatformName);
 #if !CLI
-			PreConfigureBeefSystem(mBfResolveSystem, mBfResolveCompiler);
+			if (mBfResolveSystem != null)
+				PreConfigureBeefSystem(mBfResolveSystem, mBfResolveCompiler);
 #endif
             for (var project in mWorkspace.mProjects)
             {
@@ -11124,7 +11127,7 @@ namespace IDE
 				    if (projectSource != null)
 				    {
 				        var resolveCompiler = GetProjectCompilerForFile(projectSource.mPath);
-				        if (resolveCompiler == mBfResolveCompiler)
+				        if ((resolveCompiler == mBfResolveCompiler) && (resolveCompiler != null))
 				            resolveCompiler.QueueProjectSourceRemoved(projectSource);
 
 						if (IsBeefFile(projectSource.mPath))

IDE/src/ui/SourceViewPanel.bf

@@ -563,7 +563,9 @@ namespace IDE.ui
 				Debug.WriteLine("DoAutoComplete ignored");
 				return;
 			}*/
-				
+
+			if (ResolveCompiler == null)
+				return;
 
 			if (ResolveCompiler.mThreadWorkerHi.mThreadRunning)
 			{
@@ -6173,7 +6175,7 @@ namespace IDE.ui
 					var symbolReferenceHelper = IDEApp.sApp.mSymbolReferenceHelper;
                     if (symbolReferenceHelper == null)
                     {
-						if (!compiler.mThreadWorkerHi.mThreadRunning)
+						if ((compiler != null) && (!compiler.mThreadWorkerHi.mThreadRunning))
 						{
                         	ShowSymbolReferenceHelper(SymbolReferenceHelper.Kind.ShowFileReferences);
 						}
@@ -6199,7 +6201,7 @@ namespace IDE.ui
 					mWantsCurrentLocation = true;
 				}
 
-				if ((mWantsCurrentLocation) && (!compiler.mThreadWorkerHi.mThreadRunning))
+				if ((mWantsCurrentLocation) && (compiler != null) && (!compiler.mThreadWorkerHi.mThreadRunning))
 				{
 					bool canClassify = true;
 #if IDE_C_SUPPORT
@@ -6221,7 +6223,7 @@ namespace IDE.ui
 				}
             }
 
-			if ((mQueuedAutoComplete != null) & (!compiler.mThreadWorkerHi.mThreadRunning))
+			if ((mQueuedAutoComplete != null) & (compiler != null) && (!compiler.mThreadWorkerHi.mThreadRunning))
 			{
 				DoAutoComplete(mQueuedAutoComplete.mKeyChar, mQueuedAutoComplete.mOptions);
 				DeleteAndNullify!(mQueuedAutoComplete);