[inspector] run microtasks after async Runtime.evaluate

src/inspector/v8-runtime-agent-impl.cc

Index: src/inspector/v8-runtime-agent-impl.cc
diff --git a/src/inspector/v8-runtime-agent-impl.cc b/src/inspector/v8-runtime-agent-impl.cc
index ae1393d23ec55b906540d27a73da39bb1706f584..ca9895f25a44df3d3846c8269fa4d63965619db8 100644
--- a/src/inspector/v8-runtime-agent-impl.cc
+++ b/src/inspector/v8-runtime-agent-impl.cc
@@ -78,6 +78,8 @@ class ProtocolPromiseHandler {
       callback->sendFailure(notPromiseError);
       return;
     }
+    v8::MicrotasksScope microtasks_scope(inspector->isolate(),
+                                         v8::MicrotasksScope::kRunMicrotasks);
     v8::Local<v8::Promise> promise =
         v8::Local<v8::Promise>::Cast(value.ToLocalChecked());
     Callback* rawCallback = callback.get();