[compiler-rt] [nfc][lsan] Parametrize ScanForPointers with loader (PR #112803)

[Florian Mayer via llvm-commits]

================
@@ -288,23 +288,32 @@ static inline bool MaybeUserPointer(uptr p) {
 #  endif
 }
 
+namespace {
+struct DirectLoader {
----------------
fmayer wrote:

I don't really like the name "Loader". "MemoryAccessor"? Something like that?

https://github.com/llvm/llvm-project/pull/112803