API class/interfaces should still require DocBlocks for methods

* Updated unit tests to cover new functionality reguarding when we can safely skip requiring DockBlocks
* Fix MethodArgumentsSniff to work on PHP files without namespaces

Magento2/Sniffs/Annotation/MethodArgumentsSniff.php

@@ -664,8 +664,15 @@ private function checkIfMethodNeedsDocBlock(File $phpcsFile, $stackPtr) : bool
     private function checkIfNamespaceContainsApi(File $phpcsFile) : bool
     {
         $namespaceStackPtr = $phpcsFile->findNext(T_NAMESPACE, 0);
+        if (!is_int($namespaceStackPtr)) {
+            return false;
+        }
         $tokens = $phpcsFile->getTokens();
-        for ($index = $namespaceStackPtr; 'T_SEMICOLON' !== $tokens[$index]['type']; $index++) {
+        for (
+            $index = $namespaceStackPtr;
+            array_key_exists($index, $tokens) && 'T_SEMICOLON' !== $tokens[$index]['type'];
+            $index++
+        ) {
             if ('T_STRING' === $tokens[$index]['type'] && 'Api' === $tokens[$index]['content']) {
                 return true;
             }

Magento2/Tests/Annotation/MethodArgumentsUnitTest.inc

@@ -41,13 +41,63 @@ public function invalidDocBlockShouldNotCauseFatalErrorInSniff(int $number): int
  * @return string
  */
 #[\ReturnTypeWillChange]
-public function methodWithAttributeAndValidDocblock(string $text): string
+public function methodWithAttributeAndValidDocblockWithTypes(string $text): string
+{
+    return $text;
+}
+
+/**
+ * Short description.
+ *
+ * @param string $text
+ * @return string
+ */
+#[\ReturnTypeWillChange]
+public function methodWithAttributeAndValidDocblockWithoutTypes()
 {
     return $text;
 }
 
 #[\ReturnTypeWillChange]
-public function methodWithAttributeAndWithoutDocblock(string $text): string
+public function methodWithAttributeAndWithoutDocblockWithTypes(string $text): string
+{
+    return $text;
+}
+
+#[\ReturnTypeWillChange]
+public function methodWithAttributeAndWithoutDocblockWithoutTypes($text)
+{
+    return $text;
+}
+
+public function methodWithoutDockblockWithParameterTypeWithoutReturnType(string $text)
+{
+    return $text;
+}
+
+public function methodWithoutDockblockWithoutParameterTypeWithReturnType($text) : string
+{
+    return $text;
+}
+
+/**
+ * Short description.
+ *
+ * @param string $text
+ * @return string
+ */
+public function methodWithDockblockWithParameterTypeWithoutReturnType(string $text)
+{
+    return $text;
+}
+
+/**
+ * Short description.
+ *
+ * @param mixed $text
+ * @return string
+ */
+public function methodWithDockblockWithoutParameterTypeWithReturnType($text) : string
 {
     return $text;
 }

Magento2/Tests/Annotation/MethodArgumentsUnitTest.php

@@ -18,7 +18,9 @@ public function getErrorList()
             12 => 1,
             21 => 1,
             32 => 1,
-            50 => 1
+            68 => 1,
+            73 => 1,
+            78 => 1,
         ];
     }
 

Magento2/Tests/Commenting/ClassPropertyPHPDocFormattingUnitTest.inc

@@ -201,3 +201,20 @@ class correctlyFormattedClassMemberDocBlock
      */
     protected string $deprecatedWithKeyword;
 }
+
+    class classWithPropertiesWithTypesAndWithoutDocBlock
+    {
+        protected string $test1 = 'asdf';
+
+        protected ?string $test2;
+
+        private array $array1 = [];
+
+        public array $array2;
+
+        protected readonly int $readOnlyInteger;
+
+        protected readonly string $readOnlyString;
+
+        private ?\Exception $exception;
+    }