[enh] add a test for augassign
[enh] handle unitary operator
[enh] handle boolean operator, binary operator and comparison
[enh] handle simple with
[enh] handle the 'as' in with
[enh] handle del
[enh] handle yield
[enh] handle yield atom
[enh] handle exec
[enh] handle global
[enh] handle while
[enh] handle for
[enh] handle if
[enh] handle elif
[enh] handle else
[enh] handle lambda
[enh] handle try
[enh] handle except
[enh] handle finally
[enh] handle dict