[Eva] use callsite for populate_funspec locations

tests/slicing/oracle/select_return.11.res.oracle

tests/slicing/oracle/select_return.12.res.oracle

tests/slicing/oracle/select_return.13.res.oracle

tests/slicing/oracle/select_return.14.res.oracle

tests/slicing/oracle/select_return.15.res.oracle

tests/slicing/oracle/select_return.16.res.oracle

tests/slicing/oracle/select_return.17.res.oracle

tests/slicing/oracle/select_return.18.res.oracle

tests/slicing/oracle/select_return.19.res.oracle

tests/slicing/oracle/select_return.2.res.oracle

tests/slicing/oracle/select_return.20.res.oracle

tests/slicing/oracle/select_return.21.res.oracle

tests/slicing/oracle/select_return.3.res.oracle

tests/slicing/oracle/select_return.4.res.oracle

tests/slicing/oracle/select_return.5.res.oracle

tests/slicing/oracle/select_return.6.res.oracle

tests/slicing/oracle/select_return.7.res.oracle

tests/slicing/oracle/select_return.8.res.oracle

tests/slicing/oracle/select_return.9.res.oracle

tests/slicing/oracle/select_return_bis.0.res.oracle