This simple refactor makes pattern-tuple-element available for re-use
in closure expressions. As a drive-by, diagnose non-final ellipses via
diagnose() rather than via assert(), the latter being considered
rather unfriendly. Also, take pains to restore AST invariants after
such an error.
Swift SVN r5163
One can now attach an initializer to a member variable. That value
will used as the default initialization for the member variable(s) it
initializes. Fixes <rdar://problem/12597404>.
Swift SVN r4989
We use three tag bits on Expr*, Stmt*, Decl*, TypeBase* and SILTypeInfo*, and four on DeclContext*, so set the alignment of the pointed-to types formally with alignas(N) instead of relying on operator new passing down the right alignment to the allocator. Get rid of the informal T::Alignment members of these classes and pass alignof(T) to their allocators. Fix the 'operator new' of DeclContext subclasses so that we can actually use the four tag bits PointerLikeTypeTraits<DeclContext*> claims are available.
Swift SVN r4587
A function argument clause is now one or more patterns (which
must be parenthesized and explicitly type all positions) not
separated by arrows; the first arrow then separates off the
return type.
Revisions to language reference forthcoming.
Swift SVN r1099
