* master: (96 commits)
compiler.cfg.dataflow-analysis: iterative dataflow analysis framework
functors: add MIXIN:, SINGLETON:
Add assoc-refine, which takes the intersection of a sequence of assocs
compiler.cfg: Fix unit tests
compiler.cfg.registers: minor optimization
compiler.cfg.ssa: Cytron's SSA construction algorithm
compiler.cfg.dominance: fix idom computation, compute dominator tree, compute dominance frontiers, add some tests
Move conjoin-at from compiler.cfg.liveness to sets
sequences.abbrev: add docs - not much, but a start
sequences.abbrev: keep insertion order
sequences.abbrev: more small refactoring
sequences.abbrev: small refactoring
sequences.abbrev: Initial commit
opengl is for chumps
alien.inline.compiler: help-lint fix
parser: remove outdated unit tests that were superseded by tests in vocabs.parser
vocabs.parser: add tests to assert that the correct errors get thrown
ui.tools.listener: selecting a word from a completion popup now behaves like a USE: followed by a FROM:
FROM: and RENAME: give a more meaningful error if the vocabulary does not exist
compiler.cfg.stack-analysis: fix outdated tests
...
Jeremy Hughes
Slava Pestov