Add support for doubly-extended non-template params

src/Psalm/Internal/Analyzer/Statements/Expression/Call/StaticCallAnalyzer.php

@@ -732,6 +732,11 @@ class StaticCallAnalyzer extends \Psalm\Internal\Analyzer\Statements\Expression\
                                     $found_generic_params[$type_key][$template_fq_class_name] = [
                                         $found_generic_params[$t->param_name][$t->defining_class ?: ''][0]
                                     ];
+                                } else {
+                                    $found_generic_params[$type_key][$template_fq_class_name] = [
+                                        clone $extended_type
+                                    ];
+                                    break;
                                 }
                             }
                         }

tests/Template/TemplateExtendsTest.php

@@ -2170,6 +2170,31 @@ class TemplateExtendsTest extends TestCase
                         }
                     }',
             ],
+            'extendsArryObjectGetIterator' => [
+                '<?php
+                    class Obj {}
+
+                    /**
+                     * @template T1
+                     * @template-extends ArrayObject<int, T1>
+                     */
+                    class Collection extends ArrayObject {}
+
+                    /**
+                     * @template T2 as Obj
+                     * @template-extends Collection<T2>
+                     */
+                    class Collection2 extends Collection {
+                        /**
+                         * called to get the collection ready when we go to loop through it
+                         *
+                         * @return \ArrayIterator<int, T2>
+                         */
+                        public function getIterator() {
+                            return parent::getIterator();
+                        }
+                    }'
+            ],
         ];
     }