The change to default to Portable PDB by default has broken a number of downstream consumers. Moving back to full PDBs by default on Windows.
This leaves the option for portable PDB in place. Hence you can still enable it via the following entry in project.json:
``` json
"compilationOptions": {
"debugType": "portable"
}
```
VS 2015 Update 2 CTP has been released which has support for debugging portable PDBs. Now is a good time to make the transition so a) we can root out any remaining issues with portable PDBs and b) have larger dogfooding of the VS debugging experience here.
closes#704
Rather than keep a map that will have to be constantly updated every time
a new argument gets added to a compiler, the 'additionalArguments' option
will allow users to directly add arguments to the underlying compiler.