Error in return statement not showing up in backtrace

[maleadt]

Upon executing the following simple program:

function foo()
        return bar
end

function main(args)
        foo()
end

main(ARGS)

... the backtrace does not contain a reference to the place where the error occurs:

$ julia test/bug/backtrace.jl 
ERROR: in main: bar not defined
 in main at test/bug/backtrace.jl:6
at test/bug/backtrace.jl:9

Changing foo() to trigger the error before the return statement, e.g. by first doing 'bar += 1', the backtrace DOES correctly mention where the issue happened.

[JeffBezanson]

Due to inlining. Dup of #1189.