Fixes several shortcomings in the initial attempt to use emulation markers to support the drmgr emulation API in drbbdup, and fixes related issues in drmemtrace when it uses drbbdup.
Adds missing emulation markers for a special instr for the last bbdup case (previously only the earlier cases were marked).
Removes emulation markers from the analysis copy in drbbdup_extract_bb_copy() (otherwise drmemtrace sees them and incorrectly disables elision).
Fixes the drmemtrace check for elision labels to use "where" except when "app" is actually an exclusive store, to properly find the labels and elide.
Enables the tools.drcacheoff.windows-invar test which now passes on all platforms.
Updates the drbbdup-emul-test to cover the drbbdup changes.
Fixes #5390 (closed)