[TypeDeclaration] Add new array replaced with array on ReturnTypeFromStrictNewArrayRector

rules-tests/TypeDeclaration/Rector/ClassMethod/ReturnTypeFromStrictNewArrayRector/Fixture/new_array_replace.php.inc

@@ -0,0 +1,56 @@
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictNewArrayRector\Fixture;
+
+final class NewArrayReplace
+{
+    public function getImagePaths($identifier = 'detail', $size = null)
+    {
+        $imagePaths = [];
+
+        if ($size) {
+          $imagePaths = $this->getFilePaths('/' . $identifier . '_' . $size . '.jpg/');
+        } else {
+           $imagePaths = $this->getFilePaths('/' . $identifier . '.jpg/');
+        }
+
+        return $imagePaths;
+    }
+
+    private function getFilePaths(): array
+    {
+        return [];
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictNewArrayRector\Fixture;
+
+final class NewArrayReplace
+{
+    /**
+     * @return mixed[]
+     */
+    public function getImagePaths($identifier = 'detail', $size = null): array
+    {
+        $imagePaths = [];
+
+        if ($size) {
+          $imagePaths = $this->getFilePaths('/' . $identifier . '_' . $size . '.jpg/');
+        } else {
+           $imagePaths = $this->getFilePaths('/' . $identifier . '.jpg/');
+        }
+
+        return $imagePaths;
+    }
+
+    private function getFilePaths(): array
+    {
+        return [];
+    }
+}
+
+?>

rules/TypeDeclaration/Rector/ClassMethod/ReturnTypeFromStrictNewArrayRector.php

@@ -192,7 +192,12 @@ private function isVariableOverriddenWithNonArray(
                 continue;
             }
 
-            if (! $assign->expr instanceof Array_) {
+            if ($assign->expr instanceof Array_) {
+                continue;
+            }
+
+            $nativeType = $this->nodeTypeResolver->getNativeType($assign->expr);
+            if (! $nativeType->isArray()->yes()) {
                 return true;
             }
         }