replace TODO with a type error

packages/svelte/src/compiler/phases/3-transform/index.js

@@ -35,7 +35,6 @@ export function transform_component(analysis, source, options) {
 
 	const js_source_name = get_source_name(options.filename, options.outputFilename, 'input.svelte');
 
-	// @ts-ignore TODO
 	const js = print(program, ts({ comments: analysis.comments }), {
 		// include source content; makes it easier/more robust looking up the source map code
 		// (else esrap does return null for source and sourceMapContent which may trip up tooling)