Merge branch 'ref-sql-tests'

test-run

test/big/big.lua

test/big/sql.result

test/big/sql.test.lua

test/big/sql.test.py

test/box/bad_trigger.test.py

test/box/call.result

test/box/call.test.py

test/box/iproto.result

test/box/iproto.test.py

test/box/sql.result

test/box/sql.test.lua

test/box/sql.test.py

test/parallel/call.test.py

test/replication/cluster.test.py

test/replication/swap.result

test/replication/swap.test.py