We already have Storable as a dep, this is pointless
Test BETWEEN after the IN debacle (luckily it throws in all expected cases)

Generalize the emitted exception text
Make it clearer in examples that bool takes expressions

timbunce++
No tabs, no trailers
Extra stopword (we need to find a way to introduce dialects...)
Centralize handling of in-test dumpering
Remove many of the settled-by-time comments, modernize a bit
Normalize handling of expected warnings/exceptions in tests
Move test to a better location (no changes)
Extensive tests and deprecations of multivalue/no value inequality op calls

All sql-generation tests match pre <= 1.74 behavior (except for the newly
added rlike operator, which now warns while it simply did not work with
undefs before)
Reintroduce handling of IS( NOT) ops

This is undocumented syntax, but it is very likely someone is using it in
the wild, and the previous inequality op handler rewrite broke this
Port fce4b7a9 from the DQ branch (with warning expectation ammendments)
An old (now passing) test for regression introduced in 6f2a5b6
Actually use the descriptions in the test cases
Move simple IN/BETWEEN tests to t/05in_between.t

No changes in the actual tests except splitting the empty array and
scalar tests for IN into separate cases.
release 1.75
Parentheses are significant in IN tests
Ensure that multi-nested parenthesis are never unrolled after IN

This lets us remove parenthesis_significant from many tests that do
not need it, including reversal of 1ba9d0f03
Diag input and output for unexpected success
Check for extra warnings, and diag input and output

We want to test the _lack_ of warnings as well, and having the input and
output is handy for figuring out what's wrong.