Merge pull request mono#930 from theraot/master

New cast to double and float for BigInteger

Merge pull request mono#930 from theraot/master

New cast to double and float for BigInteger

Mark MonoCMethod (runtime subclass of ConstructorInfo) as serializable. 

Fixes mono#12611

Fix the check in bf9c7dc.

The C preprocessor sucks.

When .NET serializes it will use the TypeForwardedFrom information when

writing Assembly information but Mono does not. This means that
serialized objects created on one platform are not able to be
deserialized on the other, thus preventing interoperability between .NET
and mono applications. Fixes the ObservableCollection part of bugzilla
11294.

Clear the domain on thread exit after the profile thread end hook, si…

…nce it might need it to be set.

Hopefully fix the windows build.

rx: Add -d:HAS_AWAIT options to 4.5 and 2.1 builds.

Fix the mobile build.

empty commit to get a new build going with a gtk-sharp fix