Freezes the placement logic before the port. getHitDepth projects the hit
vector onto the axis for that side and adds 1 on even sides, giving the
six frozen values, and it copies the vector rather than mutating the
caller's. onItemUse tries the clicked block first only when the depth is
below 1, then always tries the neighbour on that side, reusing and
mutating a single BlockCoord across both attempts.
Placement short-circuits as soon as newPart returns null, before any
world, player or stack access, so all of that is reachable headless with
null arguments. Real placement needs a world and stays on the functional
and manual layers.
Adds a frozen Scala 2.11.5 consumer compiled against the reference dev jar
at 7843f13, whose forwarders call all three statics. ProjRed is the only
consumer of this bridge.
57 plain-JVM tests, all passing against the untouched Scala.
