app: move the undo impl object typedefs out of the *-types.h files

They are completely private to the undo system and don't need to
be used anywhere else. Removes some clutter from the typed headers.

app/core/core-types.h

@@ -154,24 +154,9 @@ typedef struct _GimpGroupLayer      GimpGroupLayer;
 
 /*  undo objects  */
 
-typedef struct _GimpUndo              GimpUndo;
-typedef struct _GimpImageUndo         GimpImageUndo;
-typedef struct _GimpItemUndo          GimpItemUndo;
-typedef struct _GimpItemPropUndo      GimpItemPropUndo;
-typedef struct _GimpChannelUndo       GimpChannelUndo;
-typedef struct _GimpChannelPropUndo   GimpChannelPropUndo;
-typedef struct _GimpDrawableUndo      GimpDrawableUndo;
-typedef struct _GimpDrawableModUndo   GimpDrawableModUndo;
-typedef struct _GimpLayerMaskUndo     GimpLayerMaskUndo;
-typedef struct _GimpLayerMaskPropUndo GimpLayerMaskPropUndo;
-typedef struct _GimpLayerUndo         GimpLayerUndo;
-typedef struct _GimpLayerPropUndo     GimpLayerPropUndo;
-typedef struct _GimpGroupLayerUndo    GimpGroupLayerUndo;
-typedef struct _GimpMaskUndo          GimpMaskUndo;
-typedef struct _GimpGuideUndo         GimpGuideUndo;
-typedef struct _GimpSamplePointUndo   GimpSamplePointUndo;
-typedef struct _GimpUndoStack         GimpUndoStack;
-typedef struct _GimpUndoAccumulator   GimpUndoAccumulator;
+typedef struct _GimpUndo            GimpUndo;
+typedef struct _GimpUndoStack       GimpUndoStack;
+typedef struct _GimpUndoAccumulator GimpUndoAccumulator;
 
 
 /* Symmetry transformations */

app/core/gimpchannelpropundo.h

@@ -30,6 +30,7 @@
 #define GIMP_CHANNEL_PROP_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CHANNEL_PROP_UNDO, GimpChannelPropUndoClass))
 
 
+typedef struct _GimpChannelPropUndo      GimpChannelPropUndo;
 typedef struct _GimpChannelPropUndoClass GimpChannelPropUndoClass;
 
 struct _GimpChannelPropUndo

app/core/gimpchannelundo.h

@@ -30,6 +30,7 @@
 #define GIMP_CHANNEL_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CHANNEL_UNDO, GimpChannelUndoClass))
 
 
+typedef struct _GimpChannelUndo      GimpChannelUndo;
 typedef struct _GimpChannelUndoClass GimpChannelUndoClass;
 
 struct _GimpChannelUndo

app/core/gimpdrawablemodundo.h

@@ -30,6 +30,7 @@
 #define GIMP_DRAWABLE_MOD_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DRAWABLE_MOD_UNDO, GimpDrawableModUndoClass))
 
 
+typedef struct _GimpDrawableModUndo      GimpDrawableModUndo;
 typedef struct _GimpDrawableModUndoClass GimpDrawableModUndoClass;
 
 struct _GimpDrawableModUndo

app/core/gimpdrawableundo.h

@@ -30,6 +30,7 @@
 #define GIMP_DRAWABLE_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DRAWABLE_UNDO, GimpDrawableUndoClass))
 
 
+typedef struct _GimpDrawableUndo      GimpDrawableUndo;
 typedef struct _GimpDrawableUndoClass GimpDrawableUndoClass;
 
 struct _GimpDrawableUndo

app/core/gimpgrouplayerundo.h

@@ -30,6 +30,7 @@
 #define GIMP_GROUP_LAYER_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_GROUP_LAYER_UNDO, GimpGroupLayerUndoClass))
 
 
+typedef struct _GimpGroupLayerUndo      GimpGroupLayerUndo;
 typedef struct _GimpGroupLayerUndoClass GimpGroupLayerUndoClass;
 
 struct _GimpGroupLayerUndo

app/core/gimpguideundo.h

@@ -30,6 +30,7 @@
 #define GIMP_GUIDE_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_GUIDE_UNDO, GimpGuideUndoClass))
 
 
+typedef struct _GimpGuideUndo      GimpGuideUndo;
 typedef struct _GimpGuideUndoClass GimpGuideUndoClass;
 
 struct _GimpGuideUndo

app/core/gimpimageundo.h

@@ -30,6 +30,7 @@
 #define GIMP_IMAGE_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_IMAGE_UNDO, GimpImageUndoClass))
 
 
+typedef struct _GimpImageUndo      GimpImageUndo;
 typedef struct _GimpImageUndoClass GimpImageUndoClass;
 
 struct _GimpImageUndo

app/core/gimpitempropundo.h

@@ -30,6 +30,7 @@
 #define GIMP_ITEM_PROP_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ITEM_PROP_UNDO, GimpItemPropUndoClass))
 
 
+typedef struct _GimpItemPropUndo      GimpItemPropUndo;
 typedef struct _GimpItemPropUndoClass GimpItemPropUndoClass;
 
 struct _GimpItemPropUndo

app/core/gimpitemundo.h

@@ -30,6 +30,7 @@
 #define GIMP_ITEM_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ITEM_UNDO, GimpItemUndoClass))
 
 
+typedef struct _GimpItemUndo      GimpItemUndo;
 typedef struct _GimpItemUndoClass GimpItemUndoClass;
 
 struct _GimpItemUndo

app/core/gimplayermaskpropundo.h

@@ -30,6 +30,7 @@
 #define GIMP_LAYER_MASK_PROP_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LAYER_MASK_PROP_UNDO, GimpLayerMaskPropUndoClass))
 
 
+typedef struct _GimpLayerMaskPropUndo      GimpLayerMaskPropUndo;
 typedef struct _GimpLayerMaskPropUndoClass GimpLayerMaskPropUndoClass;
 
 struct _GimpLayerMaskPropUndo

app/core/gimplayermaskundo.h

@@ -30,6 +30,7 @@
 #define GIMP_LAYER_MASK_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LAYER_MASK_UNDO, GimpLayerMaskUndoClass))
 
 
+typedef struct _GimpLayerMaskUndo      GimpLayerMaskUndo;
 typedef struct _GimpLayerMaskUndoClass GimpLayerMaskUndoClass;
 
 struct _GimpLayerMaskUndo

app/core/gimplayerpropundo.h

@@ -30,6 +30,7 @@
 #define GIMP_LAYER_PROP_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LAYER_PROP_UNDO, GimpLayerPropUndoClass))
 
 
+typedef struct _GimpLayerPropUndo      GimpLayerPropUndo;
 typedef struct _GimpLayerPropUndoClass GimpLayerPropUndoClass;
 
 struct _GimpLayerPropUndo

app/core/gimplayerundo.h

@@ -30,6 +30,7 @@
 #define GIMP_LAYER_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LAYER_UNDO, GimpLayerUndoClass))
 
 
+typedef struct _GimpLayerUndo      GimpLayerUndo;
 typedef struct _GimpLayerUndoClass GimpLayerUndoClass;
 
 struct _GimpLayerUndo

app/core/gimpmaskundo.h

@@ -30,6 +30,7 @@
 #define GIMP_MASK_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_MASK_UNDO, GimpMaskUndoClass))
 
 
+typedef struct _GimpMaskUndo      GimpMaskUndo;
 typedef struct _GimpMaskUndoClass GimpMaskUndoClass;
 
 struct _GimpMaskUndo

app/core/gimpsamplepointundo.h

@@ -30,6 +30,7 @@
 #define GIMP_SAMPLE_POINT_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_SAMPLE_POINT_UNDO, GimpSamplePointUndoClass))
 
 
+typedef struct _GimpSamplePointUndo      GimpSamplePointUndo;
 typedef struct _GimpSamplePointUndoClass GimpSamplePointUndoClass;
 
 struct _GimpSamplePointUndo

app/paint/gimpinkundo.h

@@ -30,6 +30,7 @@
 #define GIMP_INK_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_INK_UNDO, GimpInkUndoClass))
 
 
+typedef struct _GimpInkUndo      GimpInkUndo;
 typedef struct _GimpInkUndoClass GimpInkUndoClass;
 
 struct _GimpInkUndo

app/paint/gimppaintcoreundo.h

@@ -30,6 +30,7 @@
 #define GIMP_PAINT_CORE_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PAINT_CORE_UNDO, GimpPaintCoreUndoClass))
 
 
+typedef struct _GimpPaintCoreUndo      GimpPaintCoreUndo;
 typedef struct _GimpPaintCoreUndoClass GimpPaintCoreUndoClass;
 
 struct _GimpPaintCoreUndo

app/paint/paint-types.h

@@ -60,12 +60,6 @@ typedef struct _GimpPerspectiveCloneOptions GimpPerspectiveCloneOptions;
 typedef struct _GimpSmudgeOptions           GimpSmudgeOptions;
 
 
-/*  paint undos  */
-
-typedef struct _GimpPaintCoreUndo GimpPaintCoreUndo;
-typedef struct _GimpInkUndo       GimpInkUndo;
-
-
 /*  functions  */
 
 typedef void (* GimpPaintRegisterCallback) (Gimp        *gimp,

app/vectors/gimpvectorsmodundo.h

@@ -30,6 +30,7 @@
 #define GIMP_VECTORS_MOD_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_VECTORS_MOD_UNDO, GimpVectorsModUndoClass))
 
 
+typedef struct _GimpVectorsModUndo      GimpVectorsModUndo;
 typedef struct _GimpVectorsModUndoClass GimpVectorsModUndoClass;
 
 struct _GimpVectorsModUndo

app/vectors/gimpvectorspropundo.h

@@ -30,6 +30,7 @@
 #define GIMP_VECTORS_PROP_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_VECTORS_PROP_UNDO, GimpVectorsPropUndoClass))
 
 
+typedef struct _GimpVectorsPropUndo      GimpVectorsPropUndo;
 typedef struct _GimpVectorsPropUndoClass GimpVectorsPropUndoClass;
 
 struct _GimpVectorsPropUndo

app/vectors/gimpvectorsundo.h

@@ -30,6 +30,7 @@
 #define GIMP_VECTORS_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_VECTORS_UNDO, GimpVectorsUndoClass))
 
 
+typedef struct _GimpVectorsUndo      GimpVectorsUndo;
 typedef struct _GimpVectorsUndoClass GimpVectorsUndoClass;
 
 struct _GimpVectorsUndo

app/vectors/vectors-types.h

@@ -27,14 +27,11 @@
 #include "vectors/vectors-enums.h"
 
 
-typedef struct _GimpAnchor          GimpAnchor;
+typedef struct _GimpAnchor       GimpAnchor;
 
-typedef struct _GimpVectors         GimpVectors;
-typedef struct _GimpVectorsUndo     GimpVectorsUndo;
-typedef struct _GimpVectorsModUndo  GimpVectorsModUndo;
-typedef struct _GimpVectorsPropUndo GimpVectorsPropUndo;
-typedef struct _GimpStroke          GimpStroke;
-typedef struct _GimpBezierStroke    GimpBezierStroke;
+typedef struct _GimpVectors      GimpVectors;
+typedef struct _GimpStroke       GimpStroke;
+typedef struct _GimpBezierStroke GimpBezierStroke;
 
 
 #endif /* __VECTORS_TYPES_H__ */