JS: move more test to box tests

js/js.translator/testData/box/multiModule/moduleAndVariableNameClash.kt

@@ -0,0 +1,14 @@
+// MODULE: main(module1)
+// FILE: main.kt
+
+fun box(): String {
+    var module1 = bar()
+    assertEquals("bar", module1)
+
+    return "OK"
+}
+
+// MODULE: module1
+// FILE: module1.kt
+
+fun bar() = "bar"