[DebugInfo] Test commit: update irrelevant comments

[dzhidzhoev]

Test update

llvm/include/llvm/Transforms/Utils/Local.h

 /// Assuming the instruction \p I is going to be deleted, attempt to salvage
 /// debug users of \p I by writing the effect of \p I in a DIExpression. If it
 /// cannot be salvaged changes its debug uses to undef.
 void salvageDebugInfo(Instruction &I);
 
 
 /// Implementation of salvageDebugInfo, applying only to instructions in
 /// \p Insns, rather than all debug users from findDbgUsers( \p I).
-/// Returns true if any debug users were updated.
 /// Mark undef if salvaging cannot be completed.
 void salvageDebugInfoForDbgValues(Instruction &I,
                                   ArrayRef<DbgVariableIntrinsic *> Insns);
 
 /// Given an instruction \p I and DIExpression \p DIExpr operating on
 /// it, append the effects of \p I to the DIExpression operand list
 /// \p Ops, or return \p nullptr if it cannot be salvaged.
 /// \p CurrentLocOps is the number of SSA values referenced by the

llvm/lib/Transforms/Utils/Local.cpp

void llvm::replaceDbgValueForAlloca(AllocaInst *AI, Value *NewAllocaAddress,
                                     DIBuilder &Builder, int Offset) {
   if (auto *L = LocalAsMetadata::getIfExists(AI))
     if (auto *MDV = MetadataAsValue::getIfExists(AI->getContext(), L))
       for (Use &U : llvm::make_early_inc_range(MDV->uses()))
         if (auto *DVI = dyn_cast<DbgValueInst>(U.getUser()))
           replaceOneDbgValueForAlloca(DVI, NewAllocaAddress, Builder, Offset);
 }
 
-/// Where possible to salvage debug information for \p I do so
-/// and return True. If not possible mark undef and return False.
+/// Where possible to salvage debug information for \p I do so.
+/// If not possible mark undef.
 void llvm::salvageDebugInfo(Instruction &I) {
   SmallVector<DbgVariableIntrinsic *, 1> DbgUsers;
   findDbgUsers(DbgUsers, &I);
   salvageDebugInfoForDbgValues(I, DbgUsers);
 }
 
 void llvm::salvageDebugInfoForDbgValues(
     Instruction &I, ArrayRef<DbgVariableIntrinsic *> DbgUsers) {