JS: create new common directory for all generated tests, migrate several tests there

js/js.translator/testData/box/inline/inlineChain.kt

@@ -0,0 +1,27 @@
+package foo
+
+// CHECK_CONTAINS_NO_CALLS: squareMultipliedByTwo
+
+internal inline fun inline1(a: Int): Int {
+    return a
+}
+
+internal inline fun inline2(a: Int): Int {
+    return inline1(a) + inline1(a)
+}
+
+internal inline fun inline3(a: Int): Int {
+    return inline1(a) * inline2(a)
+}
+
+internal fun squareMultipliedByTwo(a: Int): Int {
+    return inline3(a)
+}
+
+fun box(): String {
+    assertEquals(2, squareMultipliedByTwo(1))
+    assertEquals(18, squareMultipliedByTwo(3))
+    assertEquals(32, squareMultipliedByTwo(4))
+
+    return "OK"
+}