gf-3.2: testsuite/runtime/linearize/brackets.gfs

i -src testsuite/runtime/linearize/TestCnc.gf

l -bracket Even ?
l -bracket Exist (\x -> <Even : E -> S> x)
l -bracket f  a
l -bracket fa a
l -bracket fb a
l -bracket IsString "abcd"
l -bracket IsInteger 100
l -bracket IsFloat   12.4
l -bracket <IsString "xyz" : S>
l -bracket <\x -> x : S -> S>