patch 7.4.2252

Problem:    Compiler warnings for signed/unsigned in expression.
Solution:   Remove type cast. (Dominique Pelle)

Author: brammool

src/version.c

@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2252,
 /**/
     2251,
 /**/

src/vim.h

@@ -1632,14 +1632,14 @@ typedef UINT32_TYPEDEF UINT32_T;
 #  define GUI_FUNCTION2(f, pixel)   (gui.in_use \
 				    ?  ((pixel) != INVALCOLOR \
 					? gui_##f((pixel)) \
-					: (long_u)INVALCOLOR) \
+					: INVALCOLOR) \
 				    : termgui_##f((pixel)))
 #  define USE_24BIT		    (gui.in_use || p_tgc)
 # else
 #  define GUI_FUNCTION(f)	    gui_##f
 #  define GUI_FUNCTION2(f,pixel)    ((pixel) != INVALCOLOR \
 				     ? gui_##f((pixel)) \
-				     : (long_u)INVALCOLOR)
+				     : INVALCOLOR)
 #  define USE_24BIT		    gui.in_use
 # endif
 #else