Inside PHP strings, plugin completions were buried under project file paths and go to definition mixed the plugin's answer with the server's guesses and with IDE helper stubs. Now path items are left out when a plugin answered at that position, and in PHP and Blade paths only show once the string reads like a path. Inside a string literal (checked on the document's syntax tree) plugin definitions replace the server's; elsewhere both are kept, the plugin's first, so e.g. MyBatis mapper navigation still offers jdtls' answer. Generated helpers (_ide_helper*.php, .phpstorm.meta.php, vendor/_laravel_ide*) give way to real declarations, an empty plugin answer is marked incomplete so typing asks again, and a callable accepted before a closing quote no longer gets ().
Closes#1336
Co-authored-by: yzPeedro <[email protected]>