add @nogc to core.stdc
add @nogc to windows API
Merge pull request #777 from WalterBright/nogc-windows

add @nogc to windows API
Merge pull request #776 from WalterBright/nogc-stdc

add @nogc to core.stdc
Fix Issue 11011 - Remove uncompilable example and use a documented unittest.
Merge pull request #780 from AndrejMitrovic/Fix11011

Issue 11011 - Remove uncompilable example and use a documented unittest
Fix compilation on OpenSolaris 11.

With these changes, druntime can be compiled on OpenSolaris 11 and the unit tests can be run.
Most of tests passes.
Merge pull request #781 from redstar/solaris

Fix compilation on OpenSolaris 11.