Fix Error Prone errors

Soong wasn't including android_app or android_test sources in the
javac-check target used for the Error Prone build, which allowed
some Error Prone errors to get in.  Fix them so Error Prone can be
re-enabled for these targets.

Fixes:
external/libtextclassifier/java/tests/instrumentation/src/com/android/textclassifier/ActionsSuggestionsHelperTest.java:222: error: [JUnit4TestNotRun] This looks like a test method but is not run; please add @Test and @Ignore, or, if this is a helper method, reduce its visibility.

Bug: 146455923
Test: m RUN_ERROR_PRONE=true javac-check
Change-Id: Ib558c5b623c8bed37dbdb96160ec71351bb1e1f3
1 file changed