Use ::class syntax instead of plain strings

lib/Doctrine/DBAL/Platforms/DB2Platform.php

@@ -876,6 +876,6 @@ class DB2Platform extends AbstractPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\DB2Keywords';
+        return Keywords\DB2Keywords::class;
     }
 }

lib/Doctrine/DBAL/Platforms/DrizzlePlatform.php

@@ -20,9 +20,9 @@
 namespace Doctrine\DBAL\Platforms;
 
 use Doctrine\DBAL\Schema\Identifier;
-use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Types\BinaryType;
 
 /**
@@ -314,7 +314,7 @@ class DrizzlePlatform extends AbstractPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\DrizzleKeywords';
+        return Keywords\DrizzleKeywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/MySQL57Platform.php

@@ -79,7 +79,7 @@ class MySQL57Platform extends MySqlPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\MySQL57Keywords';
+        return Keywords\MySQL57Keywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/MySqlPlatform.php

@@ -19,13 +19,13 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\Schema\Identifier;
-use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Types\BlobType;
 use Doctrine\DBAL\Types\TextType;
-use Doctrine\DBAL\Connection;
 
 /**
  * The MySqlPlatform provides the behavior, features and SQL dialect of the
@@ -712,7 +712,7 @@ class MySqlPlatform extends AbstractPlatform
             if (! $diff->fromTable->hasColumn($columnName)) {
                 continue;
             }
-          
+
             $column = $diff->fromTable->getColumn($columnName);
 
             if ($column->getAutoincrement() === true) {
@@ -1070,7 +1070,7 @@ class MySqlPlatform extends AbstractPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\MySQLKeywords';
+        return Keywords\MySQLKeywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/OraclePlatform.php

@@ -19,13 +19,13 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
 use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Sequence;
 use Doctrine\DBAL\Schema\Table;
 use Doctrine\DBAL\Schema\TableDiff;
-use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\Types\BinaryType;
 
 /**
@@ -1156,7 +1156,7 @@ END;';
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\OracleKeywords';
+        return Keywords\OracleKeywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/PostgreSQL91Platform.php

@@ -41,7 +41,7 @@ class PostgreSQL91Platform extends PostgreSqlPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\PostgreSQL91Keywords';
+        return Keywords\PostgreSQL91Keywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/PostgreSQL92Platform.php

@@ -61,7 +61,7 @@ class PostgreSQL92Platform extends PostgreSQL91Platform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\PostgreSQL92Keywords';
+        return Keywords\PostgreSQL92Keywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/PostgreSQL94Platform.php

@@ -45,7 +45,7 @@ class PostgreSQL94Platform extends PostgreSQL92Platform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\PostgreSQL94Keywords';
+        return Keywords\PostgreSQL94Keywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/PostgreSqlPlatform.php

@@ -1166,7 +1166,7 @@ class PostgreSqlPlatform extends AbstractPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\PostgreSQLKeywords';
+        return Keywords\PostgreSQLKeywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/SQLAnywhere11Platform.php

@@ -42,6 +42,6 @@ class SQLAnywhere11Platform extends SQLAnywherePlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLAnywhere11Keywords';
+        return Keywords\SQLAnywhere11Keywords::class;
     }
 }

lib/Doctrine/DBAL/Platforms/SQLAnywhere12Platform.php

@@ -121,7 +121,7 @@ class SQLAnywhere12Platform extends SQLAnywhere11Platform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLAnywhere12Keywords';
+        return Keywords\SQLAnywhere12Keywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/SQLAnywhere16Platform.php

@@ -55,6 +55,6 @@ class SQLAnywhere16Platform extends SQLAnywhere12Platform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLAnywhere16Keywords';
+        return Keywords\SQLAnywhere16Keywords::class;
     }
 }

lib/Doctrine/DBAL/Platforms/SQLAnywherePlatform.php

@@ -26,8 +26,8 @@ use Doctrine\DBAL\Schema\Column;
 use Doctrine\DBAL\Schema\ColumnDiff;
 use Doctrine\DBAL\Schema\Constraint;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
-use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Identifier;
+use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Table;
 use Doctrine\DBAL\Schema\TableDiff;
 
@@ -1429,7 +1429,7 @@ class SQLAnywherePlatform extends AbstractPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLAnywhereKeywords';
+        return Keywords\SQLAnywhereKeywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/SQLServer2005Platform.php

@@ -58,6 +58,6 @@ class SQLServer2005Platform extends SQLServerPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLServer2005Keywords';
+        return Keywords\SQLServer2005Keywords::class;
     }
 }

lib/Doctrine/DBAL/Platforms/SQLServer2008Platform.php

@@ -114,6 +114,6 @@ class SQLServer2008Platform extends SQLServer2005Platform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLServer2008Keywords';
+        return Keywords\SQLServer2008Keywords::class;
     }
 }

lib/Doctrine/DBAL/Platforms/SQLServer2012Platform.php

@@ -101,7 +101,7 @@ class SQLServer2012Platform extends SQLServer2008Platform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLServer2012Keywords';
+        return Keywords\SQLServer2012Keywords::class;
     }
 
     /**
@@ -122,7 +122,7 @@ class SQLServer2012Platform extends SQLServer2008Platform
         if ($matchesCount > 0) {
             $orderByPos = $matches[0][($matchesCount - 1)][1];
         }
-        
+
         if ($orderByPos === false
             || substr_count($query, "(", $orderByPos) - substr_count($query, ")", $orderByPos)
         ) {

lib/Doctrine/DBAL/Platforms/SQLServerPlatform.php

@@ -22,11 +22,11 @@ namespace Doctrine\DBAL\Platforms;
 use Doctrine\DBAL\LockMode;
 use Doctrine\DBAL\Schema\Column;
 use Doctrine\DBAL\Schema\ColumnDiff;
-use Doctrine\DBAL\Schema\Identifier;
-use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
+use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Schema\TableDiff;
 
 /**
  * The SQLServerPlatform provides the behavior, features and SQL dialect of the
@@ -1512,7 +1512,7 @@ class SQLServerPlatform extends AbstractPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLServerKeywords';
+        return Keywords\SQLServerKeywords::class;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/SqlitePlatform.php

@@ -21,12 +21,12 @@ namespace Doctrine\DBAL\Platforms;
 
 use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\Schema\Column;
-use Doctrine\DBAL\Schema\TableDiff;
-use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Schema\Constraint;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
-use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Identifier;
-use Doctrine\DBAL\Schema\Constraint;
+use Doctrine\DBAL\Schema\Index;
+use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Schema\TableDiff;
 
 /**
  * The SqlitePlatform class describes the specifics and dialects of the SQLite
@@ -633,7 +633,7 @@ class SqlitePlatform extends AbstractPlatform
      */
     protected function getReservedKeywordsClass()
     {
-        return 'Doctrine\DBAL\Platforms\Keywords\SQLiteKeywords';
+        return Keywords\SQLiteKeywords::class;
     }
 
     /**