CodeGen: Move DebugLocs.
It's slightly cheaper than copying it, if the DebugLoc points to replaceable metadata every copy is recorded in a DenseMap, moving reduces the peak size of that map. llvm-svn: 228492
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It's slightly cheaper than copying it, if the DebugLoc points to replaceable metadata every copy is recorded in a DenseMap, moving reduces the peak size of that map. llvm-svn: 228492