Check if the client reports the supportsConfigurationDoneRequest capability

[JDevlieghere]

Our current implementation unconditionally assumes we'll get a configurationDone, but not all clients support the configurationDone. We need to check the capabilities reported by our client and only rely on it when the client supports the request.

[llvmbot]

@llvm/issue-subscribers-lldb-dap

Author: Jonas Devlieghere (JDevlieghere)

Our current implementation unconditionally assumes we'll get a `configurationDone`, but not all clients support the `configurationDone`. We need to check the capabilities reported by our client and only rely on it when the client supports the request.

[ashgti]

That is an adapter capability, not a client feature.

The client features are listed in the arguments to the initialize request https://microsoft.github.io/debug-adapter-protocol/specification#Requests_Initialize

The adapter capabilities are listed in the Capabilities type https://microsoft.github.io/debug-adapter-protocol/specification#Types_Capabilities

[JDevlieghere]

I thought it was a feature on both the client and the server, but you're correct, it's only listed in the adapter capabilities. I assume that means that we can assume we'll get a configurationDone request.