cred: isolate scripts in WASI and move RSA signing to AWS-LC

host/cred-script/vendor/rquickjs-sys/quickjs/tests/function_source.js

@@ -0,0 +1,14 @@
+"use strict"
+const expect = "function f() { return 42 }"
+function f() { return 42 }
+
+{
+    const actual = f.toString()
+    if (actual !== expect) throw Error(actual)
+}
+
+{
+    const f = eval(expect + "f")
+    const actual = f.toString()
+    if (actual !== expect) throw Error(actual)
+}