i#1080: Fix special heap lock ranking
i#1080: Fix special heap lock ranking

Documents a previously hidden constraint between exec_areas and module_data.

Fixes issue 1080.

Review URL: https://codereview.appspot.com/7384044

git-svn-id: ed337ca7cdb08c0ba29d8fe58632bb7686892c2d@1926 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6

rnk/dynamorio,rnk/dynamorio,rnk/dynamorio,rnk/dynamorio,rnk/dynamorio