making Reduce work with init=None for multiple args
making Indexify work with both tuple and multi-arg indexing
fixing Indexify
debugging vector dot
separated dot/matmult tests by types to make errors more obvious
refactored builtin tests
make sure Verify recursively descends into all called functions, discovered new bugs
clear call stack in verifier
test_dot works
verify
switching broadcasting to use axis=None
moving to simpler broadcasting
working on n-d broadcasting with axis=None
added more exhaustive log1p test
more tolerant comparison when running CUDA backend
added config options for omp codegen
fixed downwards loops
fiddling with cuda settings
updated assumptions of escape analysis, only arrays may alias
tweaking CUDA config options