Updated error message and fixed test.

 - Fixed `reports diagnostics and throws if errors occur during transpilation` test.
 - Removed file path duplicate from error message.

Author: Giedrius Grabauskas

src/index.ts

@@ -212,7 +212,7 @@ export default function typescript ( options: Options ) {
 			});
 
 			if ( fatalError ) {
-				throw new Error( `There were TypeScript errors transpiling "${id}"` );
+				throw new Error( `There were TypeScript errors.` );
 			}
 
 			return {

test/test.js

@@ -82,7 +82,7 @@ describe( 'rollup-plugin-typescript', function () {
 
 	it( 'reports diagnostics and throws if errors occur during transpilation', function () {
 		return bundle( 'sample/syntax-error/missing-type.ts' ).catch( function ( error ) {
-			assert.ok( error.message.indexOf( 'There were TypeScript errors' ) === 0, 'Should reject erroneous code.' );
+			assert.ok( error.message.search( 'Error transforming') === 0 && error.message.search('There were TypeScript errors.' ) > -1, 'Should reject erroneous code.' );
 		});
 	});