Sample test failed on arm64

[lindeer]

checkout master@4b7e245, this is the first commit causing the error.

$ make test
Running tests...
Test project /home/wesley/Work/projects/chatgpt/llama.cpp/build
    Start 1: test-quantize-fns
1/4 Test #1: test-quantize-fns ................   Passed    0.01 sec
    Start 2: test-quantize-perf
2/4 Test #2: test-quantize-perf ...............   Passed    0.01 sec
    Start 3: test-sampling
3/4 Test #3: test-sampling ....................Child aborted***Exception:   0.05 sec
    Start 4: test-tokenizer-0
4/4 Test #4: test-tokenizer-0 .................   Passed    0.03 sec

75% tests passed, 1 tests failed out of 4

Total Test time (real) =   0.10 sec

The following tests FAILED:
	  3 - test-sampling (Child aborted)
Errors while running CTest

assert(candidates_p.size == expected_probs.size()); assertion failed, expect 1 but candidates_p.size is 5.

[lindeer]

just run the first test case of test_tfs:

int main(void) {
    ggml_time_init();
    test_tfs({0.1, 0.15, 0.2, 0.25, 0.3}, {0.3}, 0.25);
    printf("OK\n");
}

in test_tfs:

    DUMP(&candidates_p);
    llama_sample_tail_free(nullptr, &candidates_p, z, 1);
    DUMP(&candidates_p);

output is:

/home/wesley/Work/projects/chatgpt/llama.cpp/tests/test-sampling.cpp:85 (test_tfs)
0: 0.000000 (-2.302585)
1: 0.000000 (-1.897120)
2: 0.000000 (-1.609438)
3: 0.000000 (-1.386294)
4: 0.000000 (-1.203973)
-
/home/wesley/Work/projects/chatgpt/llama.cpp/tests/test-sampling.cpp:87 (test_tfs)
4: 0.300000 (-1.203973)
3: 0.250000 (-1.386294)
2: 0.200000 (-1.609438)
1: 0.150000 (-1.897120)
0: 0.100000 (-2.302585)
-