[ESNext] Implement DynamicImportCall

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 50692c167954c40d156581dfb00c214a478963b8..6162d3d27dd560a1acc54345d26dab760fe8e2d9 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -3326,6 +3326,21 @@ void Isolate::DebugStateUpdated() {
   promise_hook_or_debug_is_active_ = promise_hook_ || debug()->is_active();
 }
 
+void Isolate::RunHostImportModuleDynamicallyCallback(
+    Handle<String> source_url, Handle<String> specifier,
+    Handle<JSPromise> promise) {
+  if (host_import_module_dynamically_callback_ == nullptr) return;
+
+  host_import_module_dynamically_callback_(
+      reinterpret_cast<v8::Isolate*>(this), v8::Utils::ToLocal(source_url),
+      v8::Utils::ToLocal(specifier), v8::Utils::PromiseToLocal(promise));
+}
+
+void Isolate::SetHostImportModuleDynamicallyCallback(
+    HostImportModuleDynamicallyCallback callback) {
+  host_import_module_dynamically_callback_ = callback;
+}
+
 void Isolate::SetPromiseHook(PromiseHook hook) {
   promise_hook_ = hook;
   DebugStateUpdated();