git commit 1b438a773764d72bbe4aea0e99359db97193e57d (master)
MacOS
Xcode
./configure --xcodenode.xcodeproj with Xcode 9got this
Check dependencies
warning: skipping file '/Users/dengwanc/Projects/node/deps/openssl' (unexpected file type 'text' in Frameworks & Libraries build phase)

Building with Xcode (apart from the command line tools) isn't supported. I'm reasonably sure it hasn't worked or worked reliably for years. We should just get rid of the switch. I'll open a pull request.
Fine...
But how do you debug source code
Some Tips Give for me ?
If use cmd line, would you provide a Example ?
Thank You.
I use lldb+llnode.
As a note you can still build + run Node.js with Xcode version 9.x (Xcode version 10 got more strict regarding circular dependencies, so you may have to downgrade first).
You can generate the node.xcodeproj via:
./configure -- -f xcode
Then you have to do two things:
-framework CoreFoundation from Frameworks. entry from the _openssl -> Build Phases -> Link Library with Libraries_ so it looks like in the screenshot below
Most helpful comment
I use lldb+llnode.