@bounce macro chockes on keyword arguments: "syntax: invalid syntax ; [keyword] = [keyword_value]"

[uribalb]

using Lazy
@bounce pow(x, n ; res=1) = n > 0 ? pow(x, n-1; res=res*x) : res

gives the error:

syntax: invalid syntax ; res = 1

Stacktrace:
 [1] top-level scope at In[2]:2
 [2] include_string(::Function, ::Module, ::String, ::String) at .\loading.jl:1091

because the macro definition doesn't account for this case.
At https://github.com/MikeInnes/Lazy.jl/blob/master/src/tail.jl#L134, the function definition should be;

$f($(args...);$(kwargs...)) = trampoline($f_tramp, $(args...); $(kwargs...))

instead of

$f($(args...)) = trampoline($f_tramp, $(args...))

with args, kwargs defined by pattern-matching rather than directly indexing args arrays. Minor PR incoming...