Add comment about sourceURL for inline scripts

Author: sirreal

src/wp-includes/class-wp-scripts.php

@@ -538,6 +538,12 @@ public function get_inline_script_data( $handle, $position = 'after' ) {
 			return '';
 		}
 
+		/*
+		 * Print sourceURL comment regardless of concatenation.
+		 *
+		 * Inline scripts prevent scripts from being concatenated, so
+		 * sourceURL comments are safe to print for inline scripts.
+		 */
 		$data[] = sprintf(
 			'//# sourceURL=%s',
 			rawurlencode( "{$handle}-js-{$position}" )