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

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

@@ -0,0 +1,22 @@
+package foo
+
+// CHECK_CONTAINS_NO_CALLS: multiplyNoInline
+
+internal inline fun multiply(a: Int, b: Int): Int {
+    return a * b
+}
+
+internal fun multiplyNoInline(a: Int, b: Int): Int {
+    var c = a - 1
+    var d = b - 1
+    return (c++) + (d++) + multiply(c, d) - (--c + --d)
+}
+
+fun box(): String {
+    assertEquals(0, multiplyNoInline(1, 0))
+    assertEquals(1, multiplyNoInline(1, 1))
+    assertEquals(2, multiplyNoInline(1, 2))
+    assertEquals(6, multiplyNoInline(2, 3))
+
+    return "OK"
+}