[llvm] IROutliner: Use ValueMapper to remap constants in a function (PR #134850)

[Arthur Eubanks via llvm-commits]

================
@@ -1943,16 +1946,14 @@ void replaceConstants(OutlinableRegion &Region) {
     // TODO: If in the future constants do not have one global value number,
----------------
aeubanks wrote:

this TODO is obsolete now that this uses RemapFunction

https://github.com/llvm/llvm-project/pull/134850