JS: provide overflow behaviour for int binary operations (see KT-7733)

js/js.translator/testData/box/number/intOverflow.kt

@@ -0,0 +1,21 @@
+package foo
+
+fun bigValue() = 0x7FFFFFFC
+
+fun mediumValue() = 0x12345
+
+fun box(): String {
+    var v = bigValue() + 1
+    if (v != 0x7FFFFFFD) return "fail1: $v"
+
+    v = bigValue() + 8
+    if (v != -0x7FFFFFFC) return "fail2: $v"
+
+    v = mediumValue() * 0x23456
+    if (v != -2112496338) return "fail3: $v"
+
+    v = bigValue() * bigValue()
+    if (v != 16) return "fail4: $v"
+
+    return "OK"
+}