Add support for RuntimeDyld::setProcessAllSections
Add support for RuntimeDyld::setProcessAllSections

This is a straight copy of r251604 (22bbdbd76) to LLILC's copy of
ObjectLinkingLayer.  I don't know that LLILC needs the new functionality,
but it seems prudent to keep the copies somewhat in sync.  A change of
some sort is needed because the signature of the LinkedObjectSet
constructor has changed.

dotnet/llilc,adiaaida/llilc,russellhadley/llilc,kyulee1/llilcjit,dotnet/llilc,kyulee1/llilcjit,JosephTremoulet/llilc,JosephTremoulet/llilc,BruceForstall/llilc,russellhadley/llilc,manu-silicon/llilc,russellhadley/llilc,adiaaida/llilc,AndyAyersMS/llilc,adiaaida/llilc,BruceForstall/llilc,swaroop-sridhar/llilc,manu-silicon/llilc,JosephTremoulet/llilc,dotnet/llilc,BruceForstall/llilc,swaroop-sridhar/llilc,AndyAyersMS/llilc,AndyAyersMS/llilc,swaroop-sridhar/llilc,manu-silicon/llilc,kyulee1/llilcjit