Add horizontal scroll bar for build messages and in debugger windows

[dougbu]

• VSCode Version: 1.1.0
• OS Version: Windows 8.1
  • C# extension used in some screen shots below: v1.0.5-rc2

Steps to Reproduce:

1. Show Errors and Warnings in a project with a few of each.

or

1. Stop at a breakpoint in a project using long-named classes or with a deeply-nested property hierarchy.

Notes

Highlighting on hover only goes so far in a few more places than #5580 covers...

Build messages

Note these messages can only be seen in full affter opening the offending file.

Call stack at breakpoint

This particular view might be improved if the stack showed {method}, {namespace-qualified class} or {class.method}, {namespace}.

Deeply nested variables

[isidorn]

Build errors layout we are changing thus forwarding this to @sandy081
Debug horizontal scroll bar is not on the current plan, for inspecting such nested variables you can evaluate them in the repl which should give more space. Though I agree we should think about adding a horizontal scroll bar

[sandy081]

I am closing this as duplicates #6679 if this issue is specific to errors and warnings. Otherwise, please reopen this for a particular issue/usecase.

Refer to #6679 for updates on problems panel