Coding Standards: Use pre-increment/decrement for stand-alone statements.

Note: This is enforced by WPCS 3.0.0:

1. There should be no space between an increment/decrement operator and the variable it applies to.
2. Pre-increment/decrement should be favoured over post-increment/decrement for stand-alone statements. “Pre” will in/decrement and then return, “post” will return and then in/decrement. Using the “pre” version is slightly more performant and can prevent future bugs when code gets moved around.

References:
* [https://developer.wordpress.org/coding-standards/wordpress-coding-standards/php/#increment-decrement-operators WordPress PHP Coding Standards: Increment/decrement operators]
* [https://github.com/WordPress/WordPress-Coding-Standards/pull/2130 WPCS: PR #2130 Core: add sniffs to check formatting of increment/decrement operators]

Props jrf.
See #59161, #58831.
Built from https://develop.svn.wordpress.org/trunk@56549


git-svn-id: http://core.svn.wordpress.org/trunk@56061 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/edit.php

@@ -124,7 +124,7 @@ if ( $doaction ) {
 				}
 
 				if ( wp_check_post_lock( $post_id ) ) {
-					$locked++;
+					++$locked;
 					continue;
 				}
 
@@ -132,7 +132,7 @@ if ( $doaction ) {
 					wp_die( __( 'Error in moving the item to Trash.' ) );
 				}
 
-				$trashed++;
+				++$trashed;
 			}
 
 			$sendback = add_query_arg(
@@ -160,7 +160,7 @@ if ( $doaction ) {
 					wp_die( __( 'Error in restoring the item from Trash.' ) );
 				}
 
-				$untrashed++;
+				++$untrashed;
 			}
 			$sendback = add_query_arg( 'untrashed', $untrashed, $sendback );
 
@@ -185,7 +185,7 @@ if ( $doaction ) {
 						wp_die( __( 'Error in deleting the item.' ) );
 					}
 				}
-				$deleted++;
+				++$deleted;
 			}
 			$sendback = add_query_arg( 'deleted', $deleted, $sendback );
 			break;