[TCWG-617] Range extension thunks - Did some refactoring to allow addresses to be assigned to sections prior to Thunk creation -- In upstream review - Investigated lld's implementation of linkerscripts and found out that they will need some refactoring as well -- Need to assign addresses more than once -- Need to insert some thunks at precise points (Mips equivalent of inline veneers), need to make sure that linkerscript won't reorder the sections.

[BUD17] Gave test run of presentation, cut down a lot of the slides as a result

== Plan == In office on Monday only, then Holiday to 1st March - Finalise slides for connect, and work out how to submit them. - Work out how to do Thunks and linker scripts cleanly

== Planned absences == Holiday 21st Feb to 1st March Linaro Connect 6th to 10th March Euro LLVM 27-28 March