update oracle and cache

tests/bugs/oracle/issue27-pred.res.oracle

tests/wp-cache/cache/2f7a37f471889e53309478f7111f2e3b.json

tests/wp-cache/cache/349453e3fffbad07325f8bf5b3443b23.json

tests/wp-cache/cache/88256e17ad3e563fabf4a3938c3414a4.json

tests/wp-cache/cache/90b7ae9827e313e62f15a4c232815006.json

tests/wp-cache/cache/a0bac3df4ce0b56c7de3f42bb7e3fdea.json

tests/wp-cache/cache/dbf0fd12923e897b3af199827b5edf2b.json

tests/wp-cache/cache/df1d30bf7323b86cce32a6e8fd4c9f58.json