Reuse Android compiler outputs and remove old build artifacts

code/GameDiagnosticsGraphics_Mobile.pas

@@ -15,6 +15,7 @@ type
       TGraphicsDiagnosticExecutionState = (gesIdle, gesPending, gesActive);
       TVisibleDrawPhase = (vdpNotStarted, vdpBase, vdpBrightness);
 
+  private
     FContainer: TCastleContainer;
     FRenderer: TKMRender;
     FPhysicalWidth, FPhysicalHeight: Integer;
@@ -63,7 +64,7 @@ type
 implementation
 
 uses
-  SysUtils, KM_GameApp_Mobile;
+  SysUtils, KM_GameApp_Mobile, KM_CommonTypes;
 
 constructor TGraphicsDiagnosticSession.Create(const AContainer: TCastleContainer);
 begin
@@ -333,7 +334,6 @@ var
   V1, V2, V3: array[0..5] of TKMSampledVertex;
   W, H: Single;
   AttemptedStage: TGraphicsVisibleDrawDiagnosticStageId;
-  Stage: TGraphicsVisibleDrawDiagnosticStageId;
   ErrorValue: TDiagnosticError;
   Ready: Boolean;
   AllStagesPass: Boolean;
@@ -622,6 +622,8 @@ var
   end;
 
   procedure AdvanceVisiblePhase;
+  var
+    Stage: TGraphicsVisibleDrawDiagnosticStageId;
   begin
     Inc(FVisibleFramesCompletedInPhase);
     if FVisiblePhase = vdpBase then

code/GameDiagnosticsView.pas

@@ -15,6 +15,7 @@ type
     type
       TGraphicsRequest = (grReadiness, grTextureLifecycle, grVisibleDraw);
 
+  private
     FActionRegion: TCastleUserInterface;
     FScroll: TCastleScrollView;
     FContent: TCastleVerticalGroup;