PSR12.Traits.UseDeclaration: fix typo in error code

The `processUseStatement()` method checking single-line trait `use` statements checks the spacing after the `use` keyword, but the error did not have the correct error code.

Author: jrfnl

CHANGELOG.md

@@ -164,6 +164,9 @@ The file documents changes to the PHP_CodeSniffer project.
     - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
 - Fixed bug #3854 : Fatal error when using Gitblame report in combination with `--basepath` and running from project subdirectory
     - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
+- Fixed bug #3856 : PSR12.Traits.UseDeclaration was using the wrong error code - SpacingAfterAs - for spacing issues after the use keyword
+    - These will now be reported using the SpacingAfterUse error code.
+    - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
 - Fixed bug #3867 : Tokenizer/PHP: union type and intersection type operators were not correctly tokenized for static properties without explicit visibility
     - Thanks to Juliette Reinders Folmer (@jrfnl) for the patch
 - Fixed bug #3877 : Filter names can be case-sensitive. The -h help text will now display the correct case for the available filters

src/Standards/PSR12/Sniffs/Traits/UseDeclarationSniff.php

@@ -655,7 +655,7 @@ protected function processUseStatement(File $phpcsFile, $stackPtr)
         $error = 'Expected 1 space after USE in trait import statement; %s found';
         if ($tokens[($stackPtr + 1)]['code'] !== T_WHITESPACE) {
             $data = ['0'];
-            $fix  = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceAfterAs', $data);
+            $fix  = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceAfterUse', $data);
             if ($fix === true) {
                 $phpcsFile->fixer->addContent($stackPtr, ' ');
             }
@@ -668,7 +668,7 @@ protected function processUseStatement(File $phpcsFile, $stackPtr)
             }
 
             $data = [$found];
-            $fix  = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceAfterAs', $data);
+            $fix  = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceAfterUse', $data);
             if ($fix === true) {
                 if ($found === 'newline') {
                     $phpcsFile->fixer->beginChangeset();