fixup! fixup! amend! [Utils] Extract CollectDebugInfoForCloning from CloneFunctionInto

Author: artempyanykh

llvm/include/llvm/Transforms/Utils/Cloning.h

@@ -211,7 +211,7 @@ void CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc,
 /// subprograms that are reachable from \p F and can be considered global for
 /// the purposes of cloning (and hence not needing to be cloned).
 ///
-/// What debug information is considered global depends on \p Changes: when
+/// What debug information should be processed depends on \p Changes: when
 /// cloning into the same module we process \p F's subprogram and instructions;
 /// when into a cloned module, neither of those.
 ///