add volatile load/store to core.bitop
nothrow for Fiber

- remove FiberException

- attribute all functions with nothrow except for call

- add templated Fiber.call(bool rethrow)()
Preparation for the issue 13701 - fix AA.dup for const elements
Merge pull request #1031 from 9rnsr/const_aa_dup

Preparation for the issue 13701 - fix AA.dup for const elements
Add missing alias for c_long_double on Solaris.

cc (sunpro) and gcc on Solaris use 80bit reals for the C `long double` data type.
Merge pull request #1033 from redstar/solaris

Add missing alias for c_long_double on Solaris.
Merge pull request #1021 from MartinNowak/fiberNothrow

nothrow for Fiber
Add missing network declaration for Solaris.

These are required to compile std.socket.
Add more Solaris declarations.

Add missing declations in `core.sys.posix.utime` and `core.sys.posix.utime`.
Merge pull request #1035 from redstar/solaris_net

Add missing network declaration for Solaris.
Merge pull request #1036 from redstar/solaris2

Add more Solaris declarations.
Add Solaris definitions to core.sys.posix.stdlib.
Merge pull request #892 from WalterBright/peek-poke

fix Issue 13138 add peek/poke to core.bitop
Merge pull request #1038 from redstar/solaris

Add Solaris definitions to core.sys.posix.stdlib.