Update dotgnu Portable.Net packages to 0.8.0:

0.8.0 (3 March 2007)

JIT

* JIT_Coder opcodes implementation (Klaus Treichel, Aleksey Demakov,
  Kirill Kononenko)
* On Demand JIT Compilation (Klaus Treichel)
* JIT exception handling (Klaus Treichel, Kirill Kononenko)
* Method Inlining support (Klaus Treichel)
* Inlining internal calls, PInvoke and math (Klaus Treichel)
* Add marshaling support (Kirill Kononenko)
* Local and Thread Local variable support (Klaus Treichel)
* Reflection support (Klaus Treichel)
* Array optimisations (Klaus Treichel)
* Static ctor support (Klaus Treichel, Aleksey Demakov)
* Delegate and Async Delegate support (Klaus Treichel)
* Safepoints and builtin/managed Exceptions (Klaus Treichel)
* Null check reduction (Klaus Treichel)
* Finalizers and GC support (Klaus Treichel)

Runtime Engine

* New Debugger (Radek Polak)
* Typed allocations (Klaus Treichel)
* Array structure optimisations (Klaus Treichel)
* Static cctor manager (Klaus Treichel)
* Watching variables (Radek Polak)
* Spec fixes on String IndexOf and LastIndexOf (Russell Stuart)
* Array.Clear fixes (Radek Polak)
* Handle fixes for JIT support (Klaus Treichel)

...and more, see the NEWS file. This closes PR 31950.

(xtraeme)