Commit
b9d8e23b806ca605c368f924cca75bdd090834c6
by Lang Hames[JITLink] Add a utility for splitting blocks at a given index.
LinkGraph::splitBlock will split a block at a given index, returning a
new block covering the range [ 0, index ) and modifying the original
block to cover the range [ index, original-block-size ). Block
addresses, content, edges and symbols will be updated as necessary. This
utility will be used in upcoming improvements to JITLink's eh-frame
support.