diff --git a/src/a.ts b/src/a.ts
--- a/src/a.ts
+++ b/src/a.ts
@@ -1 +1,2 @@
 x
+y
diff --git a/src/b.ts b/src/b.ts
--- a/src/b.ts
+++ b/src/b.ts
@@ -5,2 +5,3 @@
 p
+q
 r
