Tests: do not add transitive dependencies in multi-module tests

Prefer to have all module dependencies, including dependencies on
stdlib/reflect, declared explicitly. This allows to have tests on
situations like the one in KT-45308: three modules A<-B<-C, where C
doesn't depend on A, which was compiling correctly with the old JVM
backend before 1.5, but started to fail with JVM IR in 1.5.

Also simplify the code a bit, remove duplicated logic.

compiler/testData/codegen/box/inlineClasses/genericInlineClassSynthMembers.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS
 // MODULE: lib1
 // FILE: lib1.kt
 
@@ -13,14 +12,12 @@ inline class IC<TT>(val c: C<TT>) {
     fun foo(): Int = c.hashCode()
 }
 
-
-// MODULE: main(lib2)
+// MODULE: main(lib1, lib2)
 // FILE: main.kt
 
-
 fun box(): String {
     val ic = IC<Int>(C(42))
 
     if (ic.foo() != 42) return "FAIL"
     return "OK"
-}
+}