vim-patch:7.4.1604

Problem:    Although emoji characters are ambiguous width, best is to treat
            them as full width.
Solution:   Update the Unicode character tables. Add the 'emoji' options.
            (Yasuhiro Matsumoto)

3848e00e01

src/nvim/option_defs.h

@@ -402,6 +402,7 @@ static char *(p_dy_values[]) = {"lastline", "uhex", NULL};
 #define DY_LASTLINE             0x001
 #define DY_UHEX                 0x002
 EXTERN int p_ed;                /* 'edcompatible' */
+EXTERN bool p_emoji;            // 'emoji'
 EXTERN char_u   *p_ead;         /* 'eadirection' */
 EXTERN bool p_ea;               /* 'equalalways' */
 EXTERN char_u   *p_ep;          /* 'equalprg' */