Sema: Require '.init' when constructing from a dynamic metatype.
Sema: Require '.init' when constructing from a dynamic metatype.

This makes it clearer that expressions like "foo.myType.init()" are creating new objects, instead of invoking a weird-looking method. The last part of rdar://problem/21375845.

Swift SVN r29375

apple/swift-corelibs-foundation,apple/swift-corelibs-foundation,apple/swift-corelibs-foundation,apple/swift-corelibs-foundation,apple/swift-corelibs-foundation