Problems with abld, OPTION_REPLACE and --export_all_vtbl which means VT and TI for internal classes end up in the DEF file

Seems OPTION_REPLACE ARMCC --export_all_vtbl isn't working with abld.

Investigation so far:

• in epoc32/tools/variant/variant.cfg, if ENABLE_ABIV2_MODE is on ( not the default) then the flag is picked up from /epoc32/tools/compilation_config/armv5.mk
• if it's off, then it comes from /epoc32/tools/cl_arm.pl in the invariantOptions variable.

It seems that OPTIONS_REPLACE has a defect - investigating...

Upshot - don't use abld (in ABIV1 or v2 mode) to freeze DEF files, otherwise you'll freeze too much.