@@ -37,7 +37,6 @@ includes:
 	- tests/phpstan/baselines/empty.property.neon
 	- tests/phpstan/baselines/empty.variable.neon
 	- tests/phpstan/baselines/function.alreadyNarrowedType.neon
-	- tests/phpstan/baselines/function.impossibleType.neon
 	- tests/phpstan/baselines/function.resultUnused.neon
 	- tests/phpstan/baselines/identical.alwaysFalse.neon
 	- tests/phpstan/baselines/identical.alwaysTrue.neon
 
@@ -179,7 +179,7 @@
 		$upgrader = new Plugin_Upgrader( new Plugin_Installer_Skin( compact( 'type', 'title', 'nonce', 'url', 'overwrite' ) ) );
 		$result   = $upgrader->install( $file_upload->package, array( 'overwrite_package' => $overwrite ) );
 
-		if ( $result || is_wp_error( $result ) ) {
+		if ( $result ) {
 			$file_upload->cleanup();
 		}
 
@@ -331,7 +331,7 @@
 		$upgrader = new Theme_Upgrader( new Theme_Installer_Skin( compact( 'type', 'title', 'nonce', 'url', 'overwrite' ) ) );
 		$result   = $upgrader->install( $file_upload->package, array( 'overwrite_package' => $overwrite ) );
 
-		if ( $result || is_wp_error( $result ) ) {
+		if ( $result ) {
 			$file_upload->cleanup();
 		}
Original file line number	Diff line number	Diff line change
`@@ -179,7 +179,7 @@`
`179`	`179`	`$upgrader = new Plugin_Upgrader( new Plugin_Installer_Skin( compact( 'type', 'title', 'nonce', 'url', 'overwrite' ) ) );`
`180`	`180`	`$result = $upgrader->install( $file_upload->package, array( 'overwrite_package' => $overwrite ) );`
`181`	`181`
`182`		`- if ( $result \|\| is_wp_error( $result ) ) {`
	`182`	`+ if ( $result ) {`
`183`	`183`	`$file_upload->cleanup();`
`184`	`184`	`}`
`185`	`185`
`@@ -331,7 +331,7 @@`
`331`	`331`	`$upgrader = new Theme_Upgrader( new Theme_Installer_Skin( compact( 'type', 'title', 'nonce', 'url', 'overwrite' ) ) );`
`332`	`332`	`$result = $upgrader->install( $file_upload->package, array( 'overwrite_package' => $overwrite ) );`
`333`	`333`
`334`		`- if ( $result \|\| is_wp_error( $result ) ) {`
	`334`	`+ if ( $result ) {`
`335`	`335`	`$file_upload->cleanup();`
`336`	`336`	`}`
`337`	`337`