feat: add polyfills insertion for ES Next used features

js/js.translator/testData/box/polyfills/acosh/acoshWithExistedIntrinsic.kt

@@ -0,0 +1,27 @@
+// WITH_STDLIB
+// TARGET_BACKEND: JS_IR
+// FILE: main.js
+Math.acosh = function acosh(x) {
+    acosh.called = true;
+    if (x <= 0.5) {
+        return NaN
+    } else if (x === 1) {
+        return 0
+    }
+    return 1.3169578969248166
+}
+
+// FILE: main.kt
+import kotlin.math.acosh
+
+fun box(): String {
+    assertEquals(acosh(-1.0), Double.NaN)
+    assertEquals(acosh(0.0), Double.NaN)
+    assertEquals(acosh(0.5), Double.NaN)
+    assertEquals(acosh(1.0), 0.0)
+    assertEquals(acosh(2.0), 1.3169578969248166)
+
+    assertEquals(js("Math.acosh.called"), true)
+
+    return "OK"
+}

js/js.translator/testData/box/polyfills/acosh/acoshWithoutExistedIntrinsic.kt

@@ -0,0 +1,19 @@
+// WITH_STDLIB
+// TARGET_BACKEND: JS_IR
+// FILE: main.js
+Math.acosh = undefined;
+
+// FILE: main.kt
+import kotlin.math.acosh
+
+fun box(): String {
+    assertEquals(acosh(-1.0), Double.NaN)
+    assertEquals(acosh(0.0), Double.NaN)
+    assertEquals(acosh(0.5), Double.NaN)
+    assertEquals(acosh(1.0), 0.0)
+    assertEquals(acosh(2.0), 1.3169578969248166)
+
+    assertEquals(js("Math.acosh.called"), js("undefined"))
+
+    return "OK"
+}