Set sourcesContent in source maps of files in subdirectories

Author: ivogabe

lib/output.ts

@@ -84,7 +84,7 @@ export class Output {
 			if (!inputMap.sources || !inputMap.sourcesContent) continue;
 			for (let i = 0; i < inputMap.sources.length; i++) {
 				const absolute = path.resolve(sourceFile.gulp.base, inputMap.sources[i]);
-				const relative = path.relative(directory, absolute);
+				const relative = path.relative(output.base, absolute);
 				generator.setSourceContent(relative, inputMap.sourcesContent[i]);
 			}
 		}

test/baselines/sourceMaps/2.0/js/Main/sub/sub.js

@@ -0,0 +1 @@
+var x = 1;