Do not analyze + interpret constant maps, sets and vectors

[borkdude]

Currently we analyze and interpret constant maps like {:a 1 :b 2}. We can skip that by checking if all the keys and values are constants. We should be careful about metadata because sometimes metadata does contains something which needs evaluation:

user=> (meta ^{:a (+ 1 2 3)} {:a 1})
{:a 6}

See test script: scripts/optimizations/GH-452-constant-colls