Fix error in optimization of for loops over strings and lists#742

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robertpi wants to merge 2 commits intodotnet:masterfrom robertpi:master

+31-15

Commits on Nov 27, 2015

Two small changes to fix the build:
Robert Pickering
committed
Fix issue that meant the optimization of for loops over list and string was relying on the type of the declartion directly before the loop, not necessarily the values being looped over
Robert Pickering
committed