fix: top-level-await module execution (#7946)

This commit changes implementation of top-level-await in "deno_core".

Previously promise returned from module evaluation was not awaited,
leading to out-of-order execution of modules that have TLA. It's been
fixed by changing "JsRuntime::mod_evaluate" to be an async function
that resolves when the promise returned from module evaluation also
resolves. When waiting for promise resolution event loop is polled
repeatedly, until there are no more dynamic imports or pending
ops.

1 files changed, 23 insertions, 0 deletions

diff --git a/cli/tests/tla3/timeout_loop.js b/cli/tests/tla3/timeout_loop.js
new file mode 100644
index 000000000..860e6cd2a
--- /dev/null
+++ b/cli/tests/tla3/timeout_loop.js
@@ -0,0 +1,23 @@
+export const foo = "foo";
+
+export function delay(ms) {
+  return new Promise((res) =>
+    setTimeout(() => {
+      res();
+    }, ms)
+  );
+}
+
+let i = 0;
+
+async function timeoutLoop() {
+  await delay(1000);
+  console.log("timeout loop", i);
+  i++;
+  if (i > 5) {
+    return;
+  }
+  timeoutLoop();
+}
+
+timeoutLoop();