* uheap: some dorking around
* core: implemented ssign

* mutarray: test contains scattersort example

* core: constructor for plain enums produces first defined value

* uheap: use flat join nodes always

* uheap: write size into sum table

* uheap: make slicing as lean as possible, putting all work on the join function.

* small typo fixes

* core: shorter implementations for `try?` and `try!`

* Map: support for curry-call interface; `map a ...` turns into `('get map a)`, `...` turns into a curried call if non-empty

* uheap: use more merging opportunities
* src: `allow-early-noreturn;` disables the premature noreturn check in scope

* Map: annotate drop function, fixing bug with type-recursive dropping

* uheap: pnodes can be arbitrarily wide, merge buffers and pnodes below a size threshold

* scopes²: small fixes

* hash: added rhash/bighash functions to compute left/right slices of a previous join operation

* hash: added `sc_bighash_replace` which allows to quickly compute the hash of a replace operation

* core: `?` try to merge both arguments if type differs, cast constant to bool

* uheap: added missing module
* compiler: Type -> type module name change

* uheap: uuref and U& globals automatically become roots of the uheap

* core: `global` allows types to provide a custom global constructor through the `__globalconstructor` prototype

* core: `global` now always initializes early, when the module it is contained in is constructed. it can no longer be initialized later.