fix(UnusedUseStatementSniff): Fix test case for false positives with return...

fix(UnusedUseStatementSniff): Fix test case for false positives with return types and use statements (#2830670)

coder_sniffer/Drupal/Sniffs/Classes/UnusedUseStatementSniff.php

@@ -134,7 +134,7 @@ class Drupal_Sniffs_Classes_UnusedUseStatementSniff implements PHP_CodeSniffer_S
                 }
             }//end if
 
-            $classUsed = $phpcsFile->findNext(T_STRING, ($classUsed + 1));
+            $classUsed = $phpcsFile->findNext([T_STRING, T_RETURN_TYPE], ($classUsed + 1));
         }//end while
 
         $warning = 'Unused use statement';

coder_sniffer/Drupal/Test/good/good.php

@@ -1518,5 +1518,5 @@ function test22(MyInterface $a) {
  *   What we return.
  */
 function test23(): TestReturnType {
-  return new TestReturnType();
+  return foo();
 }