Tests: add FILE directives to some multimodule tests

To help them run on the old infrastructure, which light analysis tests
are still using.

compiler/testData/codegen/box/annotations/invisibleFunctionWithReceiverWithSuppress.kt

@@ -1,6 +1,9 @@
 // TARGET_BACKEND: JVM_IR
 // ISSUE: KT-53698
+
 // MODULE: lib
+// FILE: lib.kt
+
 package foo
 
 class Some(val s: String)
@@ -8,6 +11,8 @@ class Some(val s: String)
 internal fun Some.foo(): String = s
 
 // MODULE: main(lib)
+// FILE: main.kt
+
 @file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
 package bar