[Bug 53935] __unDName doesn't support 'G' and 'H' modifiers

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53935

--- Comment #7 from Ivan Permyakov  ---
> Ivan: would you mind submitting a patch including your modifications to
> undname.c ?
> tests are required especially with & without the UNDNAME_MS_KEYBOARD flag

static void append_ms_keyword(struct parsed_symbol *sym, const char **where,
const char *str)
{
    if (!(sym->flags & UNDNAME_NO_MS_KEYWORDS))
    {
    if (sym->flags & UNDNAME_NO_LEADING_UNDERSCORES)
        str += 2;
        *where = *where ? str_printf(sym, "%s %s", *where, str) : str;
    }
}

static void get_ext_modifier(struct parsed_symbol *sym, struct datatype_t
*modifier)
{
    modifier->left = modifier->right = NULL;
    for (;;)
    {
        switch (*sym->current)
        {
        case 'E': append_ms_keyword(sym, &modifier->right, "__ptr64"); break;
        case 'F': append_ms_keyword(sym, &modifier->left, "__unaligned");
break;
        case 'I': append_ms_keyword(sym, &modifier->right, "__restrict");
break;
        case 'G':
            {
                const char *mod = "&";
                if (modifier->right)
                    modifier->right = str_printf(sym, "%s %s", modifier->right,
mod);
                else 
                    modifier->right = mod;
            }
            break;
        case 'H':
            {
                const char *mod = "&&";
                if (modifier->right)
                    modifier->right = str_printf(sym, "%s %s", modifier->right,
mod);
                else 
                    modifier->right = mod;
            }
            break;
        default: return;
        }
        sym->current++;
    }
}