Fix compatibility by removing type constraints

Author: thekid

src/main/php/rdbms/Criteria.class.php

@@ -124,11 +124,11 @@ public function addGroupBy($column) {
    * If the first parameter is omitted or NULL given the projection will be cleared
    * projection is then assumed
    *
-   * @param   rdbms.SQLRenderable projection optional
+   * @param   ?rdbms.SQLRenderable projection optional
    * @param   string optional alias
-   * @return  rdbms.Criteria this object
+   * @return  self this object
    */
-  public function setProjection(SQLRenderable $projection= null, $alias= '') {
+  public function setProjection($projection= null, $alias= '') {
     $this->projection= (is_null($projection) || ($projection instanceof ProjectionList))
       ? $projection
       : $projection= Projections::projectionList()->add($projection, $alias)
@@ -141,7 +141,7 @@ public function setProjection(SQLRenderable $projection= null, $alias= '') {
    *
    * @param   rdbms.SQLRenderable projection
    * @param   string optional alias
-   * @return  rdbms.Criteria this object
+   * @return  self this object
    */
   public function withProjection(SQLRenderable $projection, $alias= '') {
     $crit= clone($this);

src/main/php/rdbms/ResultSet.class.php

@@ -25,11 +25,11 @@ abstract class ResultSet implements Closeable, IteratorAggregate {
   /**
    * Constructor
    *
-   * @param   var $handle
-   * @param   var $fields
-   * @param   util.TimeZone $tz
+   * @param  var $handle
+   * @param  var $fields
+   * @param  ?util.TimeZone $tz
    */
-  public function __construct($handle, $fields, TimeZone $tz= null) {
+  public function __construct($handle, $fields, $tz= null) {
     $this->handle= $handle;
     $this->fields= $fields;
     $this->tz= $tz;

src/main/php/rdbms/mysqlx/MySqlxBufferedResultSet.class.php

@@ -13,9 +13,11 @@ class MySqlxBufferedResultSet extends AbstractMysqlxResultSet {
   /**
    * Constructor
    *
-   * @param   resource handle
+   * @param   var $result
+   * @param   [:var] $fields
+   * @param   ?util.TimeZone $tz
    */
-  public function __construct($result, $fields, \util\TimeZone $tz= null) {
+  public function __construct($result, $fields, $tz= null) {
     parent::__construct($result, $fields, $tz);
     while (null !== ($record= $this->handle->fetch($this->fields))) {
       $this->records[]= $record;

src/main/php/rdbms/tds/TdsBufferedResultSet.class.php

@@ -17,11 +17,11 @@ class TdsBufferedResultSet extends AbstractTdsResultSet {
   /**
    * Constructor
    *
-   * @param   var result
-   * @param   [:var] fields
-   * @param   util.TimeZone tz
+   * @param   var $result
+   * @param   [:var] $fields
+   * @param   ?util.TimeZone $tz
    */
-  public function __construct($result, $fields, TimeZone $tz= null) {
+  public function __construct($result, $fields, $tz= null) {
     parent::__construct($result, $fields, $tz);
     do {
       try {