Factor long functions in parallel.cpp. In create_block_fn_wrapper(), clean up logic for adding flags to the wrapper function, and consolidate it near the start of the function. Add comments.
Factor long functions in parallel.cpp.
In create_block_fn_wrapper(), clean up logic for adding flags to the wrapper
function, and consolidate it near the start of the function.
Add comments.



git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@20457 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

chizarlicious/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,sungeunchoi/chapel,chizarlicious/chapel,chizarlicious/chapel,hildeth/chapel,hildeth/chapel,hildeth/chapel,hildeth/chapel,sungeunchoi/chapel,sungeunchoi/chapel,sungeunchoi/chapel,chizarlicious/chapel,hildeth/chapel,CoryMcCartan/chapel,hildeth/chapel,CoryMcCartan/chapel,sungeunchoi/chapel,sungeunchoi/chapel,chizarlicious/chapel,CoryMcCartan/chapel,chizarlicious/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,chizarlicious/chapel,CoryMcCartan/chapel,hildeth/chapel,sungeunchoi/chapel