Type unstable function because same variable name used twice

General Usage
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8

While trying some things out I found that foo and foo2 compile to the same thing. So LLVM is probably just using dce to ignore it. Which makes your code quite odd.

function foo(x)
           # some code

           y = (1, 2)   # first
           y = [x[1] for i in x]   # second

           # more code
           return y
       end

function foo2(x)
           # some code

           # first
           y = [x[1] for i in x]   # second

           # more code
           return y
       end