2002-08-29  Michael Natterer  <mitch@gimp.org>

	* tools/pdbgen/pdb.pl: added check_funcs (GIMP_IS_LAYER,
	GIMP_IS_IMAGE etc.) to all data types which are looked up by ID...

	* tools/pdbgen/app.pl: ...and call them here instead of just
	checking for (item != NULL). This way image item lookup becomes
	type safe.

	* app/pdb/channel_cmds.c
	* app/pdb/color_cmds.c
	* app/pdb/convert_cmds.c
	* app/pdb/display_cmds.c
	* app/pdb/drawable_cmds.c
	* app/pdb/edit_cmds.c
	* app/pdb/fileops_cmds.c
	* app/pdb/floating_sel_cmds.c
	* app/pdb/guides_cmds.c
	* app/pdb/image_cmds.c
	* app/pdb/layer_cmds.c
	* app/pdb/misc_tools_cmds.c
	* app/pdb/paint_tools_cmds.c
	* app/pdb/parasite_cmds.c
	* app/pdb/paths_cmds.c
	* app/pdb/selection_cmds.c
	* app/pdb/selection_tools_cmds.c
	* app/pdb/text_tool_cmds.c
	* app/pdb/transform_tools_cmds.c
	* app/pdb/undo_cmds.c: regenerated.