[ESNext] Implement DynamicImportCall

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index d7b7205ef0a0b18e341343875f614ca18fed6610..0eddbd409d455dd9cd104052b6d30227a3940782 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -1071,6 +1071,12 @@ class V8_EXPORT Module {
    * Returns the completion value.
    */
   V8_WARN_UNUSED_RESULT MaybeLocal<Value> Evaluate(Local<Context> context);
+
+  static V8_WARN_UNUSED_RESULT bool FinishDynamicImportSuccess(
+      Local<Context> context, Local<Promise> promise, Local<Module> module);
+
+  static V8_WARN_UNUSED_RESULT bool FinishDynamicImportFailure(
+      Local<Context> context, Local<Promise> promise, Local<Value> exception);
 };
 
 /**
@@ -5787,6 +5793,11 @@ typedef void (*BeforeCallEnteredCallback)(Isolate*);
 typedef void (*CallCompletedCallback)(Isolate*);
 typedef void (*DeprecatedCallCompletedCallback)();
 
+typedef void (*HostImportModuleDynamicallyCallback)(Isolate* isolate,
+                                                    Local<String> referrer,
+                                                    Local<String> specifier,
+                                                    Local<Promise> promise);
+
 /**
  * PromiseHook with type kInit is called when a new promise is
  * created. When a new promise is created as part of the chain in the
@@ -6336,7 +6347,8 @@ class V8_EXPORT Isolate {
           add_histogram_sample_callback(nullptr),
           array_buffer_allocator(nullptr),
           external_references(nullptr),
-          allow_atomics_wait(true) {}
+          allow_atomics_wait(true),
+          host_import_module_dynamically_callback_(nullptr) {}
 
     /**
      * The optional entry_hook allows the host application to provide the
@@ -6399,6 +6411,12 @@ class V8_EXPORT Isolate {
      * this isolate.
      */
     bool allow_atomics_wait;
+
+    /**
+     *  TODO(gsathya): Write doc
+     */
+    HostImportModuleDynamicallyCallback
+        host_import_module_dynamically_callback_;
   };