Remove Doctrine\DBAL\Types\Type::__toString()

UPGRADE.md

 # Upgrade to 3.0
 
+## BC BREAK: `Doctrine\DBAL\Types\Type::__toString()` removed
+
+Relying on string representation was discouraged and has been removed.
+
 ## BC BREAK: The `NULL` value of `$offset` in LIMIT queries is not allowed
 
 The `NULL` value of the `$offset` argument in `AbstractPlatform::(do)?ModifyLimitQuery()` methods is no longer allowed. The absence of the offset should be indicated with a `0` which is now the default value.

lib/Doctrine/DBAL/Schema/Visitor/Graphviz.php

@@ -79,7 +79,7 @@ class Graphviz extends AbstractVisitor
             $label .= '<TR>';
             $label .= '<TD BORDER="0" ALIGN="LEFT" BGCOLOR="#eeeeec">';
             $label .= '<FONT COLOR="#2e3436" FACE="Helvetica" POINT-SIZE="12">' . $columnLabel . '</FONT>';
-            $label .= '</TD><TD BORDER="0" ALIGN="LEFT" BGCOLOR="#eeeeec"><FONT COLOR="#2e3436" FACE="Helvetica" POINT-SIZE="10">' . strtolower($column->getType()) . '</FONT></TD>';
+            $label .= '</TD><TD BORDER="0" ALIGN="LEFT" BGCOLOR="#eeeeec"><FONT COLOR="#2e3436" FACE="Helvetica" POINT-SIZE="10">' . strtolower($column->getType()->getName()) . '</FONT></TD>';
             $label .= '<TD BORDER="0" ALIGN="RIGHT" BGCOLOR="#eeeeec" PORT="col' . $column->getName() . '">';
 
             $primaryKey = $table->getPrimaryKey();

lib/Doctrine/DBAL/Types/Type.php

@@ -7,9 +7,6 @@ use Doctrine\DBAL\ParameterType;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
 use function array_map;
 use function get_class;
-use function str_replace;
-use function strrpos;
-use function substr;
 
 /**
  * The base class for so-called Doctrine mapping types.
@@ -302,23 +299,6 @@ abstract class Type
         );
     }
 
-    /**
-     * @deprecated Relying on string representation is discouraged and will be removed in DBAL 3.0.
-     *
-     * @return string
-     */
-    public function __toString()
-    {
-        $type     = static::class;
-        $position = strrpos($type, '\\');
-
-        if ($position !== false) {
-            $type = substr($type, $position);
-        }
-
-        return str_replace('Type', '', $type);
-    }
-
     /**
      * Does working with this column require SQL conversion functions?
      *