Filing bugs submitted by Christopher Doris

One shows a regression which occurred since 1.7.0 for iterators with
interesting control logic controlling yields; the other demonstrates a
problem with how integer literals are codegen'd for the C back-end.
Vass is looking at the first, I'm testing a patch for the second.




git-svn-id: http://svn.code.sf.net/p/chapel/code/trunk@22164 3a8e244f-b0f2-452b-bcba-4c88e055c3ca