[RemoveDIs] Copy debug mode to new functions in amdgpu-lower-buffer-fat-pointers

Fixes failing tests after #84308

LLVM :: CodeGen/AMDGPU/GlobalISel/irtranslator-non-integral-address-spaces-vectors.ll
LLVM :: CodeGen/AMDGPU/GlobalISel/irtranslator-non-integral-address-spaces.ll
LLVM :: CodeGen/AMDGPU/lower-buffer-fat-pointers-calls.ll
LLVM :: CodeGen/AMDGPU/lower-buffer-fat-pointers-constants.ll
LLVM :: CodeGen/AMDGPU/lower-buffer-fat-pointers-pointer-ops.ll
LLVM :: CodeGen/AMDGPU/pal-metadata-3.0.ll

Buildbots: https://lab.llvm.org/buildbot/#/builders/121/builds/39855

Author: OCHyams

llvm/lib/Target/AMDGPU/AMDGPULowerBufferFatPointers.cpp

@@ -1841,6 +1841,7 @@ static Function *moveFunctionAdaptingType(Function *OldF, FunctionType *NewTy,
   bool IsIntrinsic = OldF->isIntrinsic();
   Function *NewF =
       Function::Create(NewTy, OldF->getLinkage(), OldF->getAddressSpace());
+  NewF->IsNewDbgInfoFormat = OldF->IsNewDbgInfoFormat;
   NewF->copyAttributesFrom(OldF);
   NewF->copyMetadata(OldF, 0);
   NewF->takeName(OldF);