[llvm] [ThinLTO]Mark referencers of local ifunc not eligible for import (PR #92431)

[Mingming Liu via llvm-commits]

minglotus-6 wrote:

The failed test is irrelevant

```
# After downloading logs from https://buildkite.com/llvm-project/github-pull-requests/builds/64747#018f8296-6cf1-497e-94ab-8a53cd351a8f

cat github-pull-requests_build_64747_linux-linux-x64.log | grep -B 10 -A 10 "Failed Tests"
bk;t=1715887562543[0.70s,0.80s) :: [                                        ] :: [  1/419]
bk;t=1715887562543[0.60s,0.70s) :: [                                        ] :: [  1/419]
bk;t=1715887562543[0.50s,0.60s) :: [                                        ] :: [  6/419]
bk;t=1715887562543[0.40s,0.50s) :: [                                        ] :: [  9/419]
bk;t=1715887562543[0.30s,0.40s) :: [**                                      ] :: [ 23/419]
bk;t=1715887562543[0.20s,0.30s) :: [*************                           ] :: [142/419]
bk;t=1715887562543[0.10s,0.20s) :: [***************                         ] :: [167/419]
bk;t=1715887562543[0.00s,0.10s) :: [******                                  ] :: [ 69/419]
bk;t=1715887562543--------------------------------------------------------------------------
bk;t=1715887562543********************
bk;t=1715887562543Failed Tests (1):
bk;t=1715887562543  BOLT :: RISCV/unnamed-sym-no-entry.c
bk;t=1715887562543
bk;t=1715887562543
bk;t=1715887562543Testing Time: 2.56s
bk;t=1715887562543
bk;t=1715887562543Total Discovered Tests: 431
bk;t=1715887562543  Skipped          :   7 (1.62%)
bk;t=1715887562543  Unsupported      :  13 (3.02%)
bk;t=1715887562543  Passed           : 409 (94.90%)
bk;t=1715887562543  Expectedly Failed:   1 (0.23%)

```

https://github.com/llvm/llvm-project/pull/92431