[Pseudo-ObjC] Render @autoreleasepool blocks

[AngeloD2022]

Translate autorelease pool runtime function calls to @autoreleasepool {...} blocks.

Original Objective-C snippet:

for (NSUInteger itemNo = 1; itemNo <= 3; itemNo++) {
    @autoreleasepool {
        NSString *item = [NSString stringWithFormat:@"batch %lu, item %lu",
                            (unsigned long)batchNo,
                            (unsigned long)itemNo];
        NSString *displayItem = [item uppercaseString];
        [items addObject:displayItem];
    }
}

Pseudo-C snippet:

for (int64_t i = 1; i <= 3; i += 1)
{
    void* context = _objc_autoreleasePoolPush();
    int64_t x0;
    int64_t var_80_1 = x0;
    i_1 = i;
    id location_2 = _objc_retainAutoreleasedReturnValue(_objc_msgSend(
        _OBJC_CLASS_$_NSString, "stringWithFormat:", &cfstr_batch_%lu,_item_%lu));
    int64_t location_1 = _objc_retainAutoreleasedReturnValue(_objc_msgSend(
        location_2, "uppercaseString"));
    _objc_msgSend(var_20, "addObject:", location_1);
    _objc_storeStrong(&location_1, nullptr);
    _objc_storeStrong(&location_2, nullptr);
    _objc_autoreleasePoolPop(context);
}

Equivalent Pseudo-Objective-C:

for (int64_t i = 1; i <= 3; i += 1)
{
    @autoreleasepool
    {
        int64_t x0;
        int64_t var_80_1 = x0;
        i_1 = i;
        id location_2 =
            [[NSString stringWithFormat:@"batch %lu, item %lu"] retain];
        int64_t location_1 = [[location_2 uppercaseString] retain];
        [var_20 addObject:location_1];
        _objc_storeStrong(&location_1, nullptr);
        _objc_storeStrong(&location_2, nullptr);
    }
}