Why can't I use a builtin function name in a higer order function?

[alexey-milovidov]

milovidov-pc :) SELECT arrayMap(addressToSymbol, trace), count() FROM 'trace_log.tsv.zst' WHERE trace_type = 'Real' GROUP BY trace ORDER BY count() DESC LIMIT 10

SELECT
    arrayMap(addressToSymbol, trace),
    count()
FROM `trace_log.tsv.zst`
WHERE trace_type = 'Real'
GROUP BY trace
ORDER BY count() DESC
LIMIT 10

Query id: 4d3e1771-15e7-439f-b8b9-fb5c4bc7db4d


Elapsed: 0.158 sec. 

Received exception:
Code: 47. DB::Exception: Unknown expression or function identifier 'addressToSymbol' in scope SELECT arrayMap(addressToSymbol, trace), count() FROM `trace_log.tsv.zst` WHERE trace_type = 'Real' GROUP BY trace ORDER BY count() DESC LIMIT 10. (UNKNOWN_IDENTIFIER)