debugger: fix debugger blocked main thread
see #2110 (closed)
Call uv_walk to close all handles， otherwise would meat error below.
Assertion failed: ((err) == (0)), function Stop, file ../src/debug-agent.cc, line 156.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
see #2110 (closed)
Call uv_walk to close all handles， otherwise would meat error below.
Assertion failed: ((err) == (0)), function Stop, file ../src/debug-agent.cc, line 156.