[RemoveDIs][NFC] Move DPValue::filter -> filterDbgVars (#85208)

This patch changes DPValue::filter to be a non-member method
filterDbgVars. There are two reasons for this: firstly, the name of
DPValue is about to change to DbgVariableRecord, which will result in
every `for` loop that uses DPValue::filter to require a line break. This
is a small thing, but it makes the rename patch more difficult to
review, and is just generally more awkward for what is a fairly common
loop. Secondly, the intent is to later break up the DPValue class into
subclasses, at which point it would be better to have a non-member
function that allows template arguments for the cases we want to filter
with greater specificity.

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Utils/ValueMapper.cpp b/llvm/lib/Transforms/Utils/ValueMapper.cpp
index abb7a44..d037742 100644
--- a/llvm/lib/Transforms/Utils/ValueMapper.cpp
+++ b/llvm/lib/Transforms/Utils/ValueMapper.cpp
@@ -1239,7 +1239,7 @@ void ValueMapper::remapDPValue(Module *M, DPValue &V) {
 
 void ValueMapper::remapDPValueRange(
     Module *M, iterator_range<DbgRecord::self_iterator> Range) {
-  for (DPValue &DPV : DPValue::filter(Range)) {
+  for (DPValue &DPV : filterDbgVars(Range)) {
     remapDPValue(M, DPV);
   }
 }