feat: add polyfills insertion for ES Next used features

js/js.translator/testData/box/polyfills/cosh/coshWithExistedIntrinsic.kt

@@ -0,0 +1,26 @@
+// WITH_STDLIB
+// TARGET_BACKEND: JS_IR
+// FILE: main.js
+Math.cosh = function cosh(x) {
+    cosh.called = true;
+    switch (x) {
+        case -1: return 1.5430806348152437
+        case 0: return 1.0
+        case 1: return 1.5430806348152437
+        case 2: return 3.7621956910836314
+    }
+}
+
+// FILE: main.kt
+import kotlin.math.cosh
+
+fun box(): String {
+    assertEquals(cosh(-1.0), 1.5430806348152437)
+    assertEquals(cosh(0.0), 1.0)
+    assertEquals(cosh(1.0), 1.5430806348152437)
+    assertEquals(cosh(2.0), 3.7621956910836314)
+
+    assertEquals(js("Math.cosh.called"), true)
+
+    return "OK"
+}

js/js.translator/testData/box/polyfills/cosh/coshWithoutExistedIntrinsic.kt

@@ -0,0 +1,18 @@
+// WITH_STDLIB
+// TARGET_BACKEND: JS_IR
+// FILE: main.js
+Math.cosh = undefined;
+
+// FILE: main.kt
+import kotlin.math.cosh
+
+fun box(): String {
+    assertEquals(cosh(-1.0), 1.5430806348152437)
+    assertEquals(cosh(0.0), 1.0)
+    assertEquals(cosh(1.0), 1.5430806348152437)
+    assertEquals(cosh(2.0), 3.7621956910836314)
+
+    assertEquals(js("Math.cosh.called"), js("undefined"))
+
+    return "OK"
+}