Intent of has_namespace_division, has_namespace_division, +1

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 3 tests
- server/ 3 tests
  - common/ 3 tests
    
    persistence/ 3 tests
    
    visibility/ 3 tests
    
    store/ 3 tests
    
    sql/ 3 tests
    
    TestMySQLQueryConverterSuite/ 1 test
    
    TestConvertWhereString/ 1 test
    
    go.temporal.io/server/common/persistence/visibility/store/sql/TestMySQLQueryConverterSuite/TestConvertWhereString/has_namespace_division Introduced here
    
    TestPostgreSQLQueryConverterSuite/ 1 test
    
    TestConvertWhereString/ 1 test
    
    go.temporal.io/server/common/persistence/visibility/store/sql/TestPostgreSQLQueryConverterSuite/TestConvertWhereString/has_namespace_division Introduced here
    
    TestSQLiteQLQueryConverterSuite/ 1 test
    
    TestConvertWhereString/ 1 test
    
    go.temporal.io/server/common/persistence/visibility/store/sql/TestSQLiteQLQueryConverterSuite/TestConvertWhereString/has_namespace_division Introduced here