This change:
- Removes usage of the EXPERIMENTAL_JAVA_LANGUAGE_LEVEL_9=false option
from tests, since it is going to be removed. The java_version
property is used instead.
- Commons up some of the assertions between the tests for language
levels 8 and 9 in sdk_test.go.
- In commoning the code up, some additional assertions are made in the
language level 9 cases, strengthening the tests.
Test: m nothing
Bug: 115604102
Change-Id: I693c5d299b5592b851c44dde4434d92a931f15cd