Merge pull request #4332 from morozov/static-analysis-improvements

lib/Doctrine/DBAL/Cache/QueryCacheProfile.php

lib/Doctrine/DBAL/Connection.php

...octrine/DBAL/Connections/PrimaryReadReplicaConnection.php

lib/Doctrine/DBAL/Logging/SQLLogger.php

lib/Doctrine/DBAL/Query/QueryBuilder.php

lib/Doctrine/DBAL/SQLParserUtils.php

...trine/DBAL/Tools/Console/Command/ReservedWordsCommand.php

...ine/Tests/DBAL/Functional/Schema/Db2SchemaManagerTest.php

...Tests/DBAL/Functional/Schema/DrizzleSchemaManagerTest.php

...e/Tests/DBAL/Functional/Schema/MySqlSchemaManagerTest.php

.../Tests/DBAL/Functional/Schema/OracleSchemaManagerTest.php

...ts/DBAL/Functional/Schema/PostgreSqlSchemaManagerTest.php

...s/DBAL/Functional/Schema/SQLAnywhereSchemaManagerTest.php

...sts/DBAL/Functional/Schema/SQLServerSchemaManagerTest.php

...BAL/Functional/Schema/SchemaManagerFunctionalTestCase.php

.../Tests/DBAL/Functional/Schema/SqliteSchemaManagerTest.php