patch 8.0.1791: using uint8_t does not work everywhere

Problem:    Using uint8_t does not work everywhere.
Solution:   Use char_u instead.

src/os_win32.c

@@ -7661,7 +7661,7 @@ vtp_sgr_bulks(
 ctermtoxterm(
     int cterm)
 {
-    uint8_t r, g, b, idx;
+    char_u r, g, b, idx;
 
     cterm_color2rgb(cterm, &r, &g, &b, &idx);
     return (((int)r << 16) | ((int)g << 8) | (int)b);

src/proto/term.pro

@@ -76,5 +76,5 @@ void update_tcap(int attr);
 void swap_tcap(void);
 guicolor_T gui_get_color_cmn(char_u *name);
 guicolor_T gui_get_rgb_color_cmn(int r, int g, int b);
-void cterm_color2rgb(int nr, uint8_t *r, uint8_t *g, uint8_t *b, uint8_t *ansi_idx);
+void cterm_color2rgb(int nr, char_u *r, char_u *g, char_u *b, char_u *ansi_idx);
 /* vim: set ft=c : */

src/term.c

@@ -6981,7 +6981,7 @@ static int grey_ramp[] = {
 #  define VTERM_ANSI_INDEX_NONE 0
 # endif
 
-static uint8_t ansi_table[16][4] = {
+static char_u ansi_table[16][4] = {
 //   R    G    B   idx
   {  0,   0,   0,  1}, // black
   {224,   0,   0,  2}, // dark red
@@ -7003,7 +7003,7 @@ static uint8_t ansi_table[16][4] = {
 };
 
     void
-cterm_color2rgb(int nr, uint8_t *r, uint8_t *g, uint8_t *b, uint8_t *ansi_idx)
+cterm_color2rgb(int nr, char_u *r, char_u *g, char_u *b, char_u *ansi_idx)
 {
     int idx;
 

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1791,
 /**/
     1790,
 /**/