[Wasm][Stdlib] Add public APIs for linear memory access

Needed for interop with APIs that use linear memory.

js/js.translator/testData/box/native/long.kt

@@ -1,4 +1,4 @@
-// EXPECTED_REACHABLE_NODES: 1273
+// EXPECTED_REACHABLE_NODES: 1490
 // DONT_TARGET_EXACT_BACKEND: WASM
 // WASM_MUTE_REASON: UNSUPPORTED_JS_INTEROP
 // KJS_WITH_FULL_RUNTIME
@@ -9,7 +9,10 @@ import kotlin.js.Date
 
 fun box(): String {
     assertEquals("1970-01-01T00:00:00.000Z", Date(0L).toISOString())
-    assertEquals("10/4/1995, 12:00:00 AM", Date(1995, 9, 4, 0, 0, 0, 0L).toLocaleString("en-US"))
+    assertTrue(Date(1995, 9, 4, 0, 0, 0, 0L).toLocaleString("en-US") in listOf(
+        "10/4/1995, 12:00:00 AM",
+        "10/4/1995, 12:00:00 AM"  // New v8 uses NNBSP
+    ))
     assertEquals(812764800000.0, Date.UTC(1995, 9, 4, 0, 0, 0, 0L))
 
     return "OK"