Issue #3516489 disregard phpstan-ignore comments in front of function declaration

coder_sniffer/Drupal/Sniffs/Commenting/FunctionCommentSniff.php

@@ -95,8 +95,15 @@ public function process(File $phpcsFile, $stackPtr)
                 continue;
             }
 
+            // If there is a phpstan-ignore inline comment disregard it and continue searching backwards
+            // to find the function comment.
+            if ($this->tokenIsPhpstanComment($tokens[$commentEnd]) === true) {
+                $functionCodeStart = $commentEnd;
+                continue;
+            }
+
             break;
-        }
+        }//end for
 
         // Constructor methods are exempt from requiring a docblock.
         // @see https://www.drupal.org/project/coder/issues/3400560.
@@ -182,6 +189,20 @@ public function process(File $phpcsFile, $stackPtr)
     }//end process()
 
 
+    /**
+     * Determine if a token is a '@phpstan-' control comment.
+     *
+     * @param array<mixed> $token The token to be checked.
+     *
+     * @return bool True if the token contains a @phpstan comment.
+     */
+    public static function tokenIsPhpstanComment($token)
+    {
+        return ($token['code'] === T_COMMENT && strpos($token['content'], ' @phpstan-') !== false);
+
+    }//end tokenIsPhpstanComment()
+
+
     /**
      * Process the return comment of this function comment.
      *

tests/Drupal/good/good.php

@@ -1124,7 +1124,7 @@ public function test8() {}
 
 }
 
-t('Some long mulit-line 
+t('Some long mulit-line
   text is weird, but allowed.');
 
 // Anonymous functions should not throw indentation errors here.
@@ -2003,3 +2003,12 @@ public function &get($instance_id) {
   }
 
 }
+
+/**
+ * Test for @phpstan-ignore-next-line.
+ *
+ * Coder issue https://www.drupal.org/project/coder/issues/3516489
+ */
+// @phpstan-ignore-next-line missingType.return
+public function ignore_phpstan_comment() {
+}