[JS IR BE] Fix boolean and/or generation

js/js.translator/testData/box/regression/typeChecks/booleanOperatorsTypes.kt

@@ -0,0 +1,28 @@
+// IGNORE_BACKEND: JS
+// EXPECTED_REACHABLE_NODES: 1281
+
+package foo
+
+fun check(x: Any?) {
+    x as Boolean
+}
+
+fun tests(x: Boolean, y: Boolean) {
+    check(x)
+    check(!x)
+    check(x or y)
+    check(x and y)
+    check(x xor y)
+    check(x.not())
+    check(x || y)
+    check(x && y)
+}
+
+fun box(): String {
+    tests(false, false)
+    tests(false, true)
+    tests(true, false)
+    tests(true, true)
+
+    return "OK"
+}