Revert "IR: Remove uselist for constantdata (#137313)" Possibly breaks the build: https://lab.llvm.org/buildbot/#/builders/24/builds/8119 This reverts commit 87f312aad6ede636cd2de5d18f3058bf2caf5651. GitOrigin-RevId: 5936c02c8b9c6d1476f7830517781ce8b6e26e75