launch.json generation

[isidorn]

• any os @egamma

Complexity: 2

We have changed the way how we get the content for the initial 'launch.json'. More details #9061.
Have a workspace with no 'launch.json' file and verify:

• A proper 'launch.json' gets generated for the following debug types: node, extension host, go...
• For node debugging the content of the 'package.json' is read and the generated 'program' attribute in 'launch.json' points to the one referenced there (example: use vscode-smoketest-express workspace)

[chrmarti]

Related #8937

[Skamau]

this is not working for me..please help