[xtext][builder] Fixed typo in @deprecated Javadoc tag

The tag is case sensitive.

Change-Id: I7184aada73550215044d0e89a6f5bf6d2e97d8ba
[xbase][typesystem] Improved type inference for overly strict expectation

Provider<SuperType> can now be implemented by a closure
[ new SubType ] in a straight forward and more intuitive way

see https://bugs.eclipse.org/bugs/show_bug.cgi?id=436230
see https://bugs.eclipse.org/bugs/show_bug.cgi?id=445487

Change-Id: I628b2e28a6ead832b3d403c42e8dbc800e65ac73
Merge "[xtext][builder] Fixed typo in @deprecated Javadoc tag"
Merge "[xbase][typesystem] Improved type inference for overly strict expectation"