b6e3a0e5 fix mistake in eval_let where an intermediate value could be forgotten by the Mark phase and end up removed by GC
f327c61b renaming all pop_u32 and push_u32 functions to just push and pop
git-subtree-dir: lispBM/lispBM
git-subtree-split: b6e3a0e5286c6380e4a9170819404752afcdf5e1
Benjamin Vedder