Fix infinite loop in linearization of a big radius small arc

Ref #4058 for trunk (2.5.0dev)
Includes unit test

git-svn-id: http://svn.osgeo.org/postgis/trunk@16618 b70326c6-7e19-0410-871a-916f4a2858ee
1 job for svn-trunk in 16 minutes and 15 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #75280430
test

00:16:15