i#1069: more accurately calculate the size of routines in the .replace section.  Punting on more complex scheme for now b/c the section is smaller than a page so the order assumption works out.
i#1069: more accurately calculate the size of routines in the .replace
section.  Punting on more complex scheme for now b/c the section is smaller
than a page so the order assumption works out.

git-svn-id: fe3cd4388a6e5a968b09397a3d721fe124e8117a@1090 5b54908e-ead4-fc18-b48a-0285e6dbc711

rnk/drmemory,rnk/drmemory,rnk/drmemory,rnk/drmemory