Add restrictVarEnv :: VarEnv a -> VarSet -> VarEnv a
authorsimonpj@microsoft.com <unknown>
Fri, 23 Oct 2009 16:17:35 +0000 (16:17 +0000)
committersimonpj@microsoft.com <unknown>
Fri, 23 Oct 2009 16:17:35 +0000 (16:17 +0000)
commit55c1f08cf6b8812f60b0c45882442c146bb9e92a
tree2d4e33cfdc83e1a2c55f44912f45afdd1ec3625d
parent9aad47f1162666431deee99884c523b1ff69cf98
Add restrictVarEnv :: VarEnv a -> VarSet -> VarEnv a

I needed it, and then didn't need it, so it's not currently
called, but its generally useful kind of thing.
compiler/basicTypes/VarEnv.lhs