Allow empty tokens in strict grammar

In SQLiteQueryBuilder, allow empty tokens when checking for invalid
tokens during the strict grammar check.

Fixes: 151151800
Fixes: 161769478
Test: atest SQLiteQueryBuilderTest#testStrictQueryEmptyToken
Change-Id: Iac1cdd643253fd186a164b863d65d6e92698fd38
(cherry picked from commit e409ec2492f47be9a0f3917bbbb324624eec7b5e)
(cherry picked from commit b7cffcab3228c7de9d6450f746cd5066dcfbb621)
1 file changed