Introduce a '.metatype' form in the syntax and do some basic
type-checking that I probably haven't done right. Change
IR-generation for that and GetMetatypeExpr to use code that
actually honors the dynamic type of an expression.
Swift SVN r3053
dispatch. Currently there is no possibility of override.
This was really not as difficult as I managed to make it
the first time through.
Swift SVN r2960
of a class is part of the class members section and is not
global to the entire class metadata. This is crucial for
correct operation of functions expecting a base-class
metadata object.
That gives us the correct foundation to implement an
optimization under which generic arguments that can be
inferred from the 'this' pointer need not actually be
separately passed. This has the important result of
making all class member functions with the same signature
up to abstraction actually have the same physical
signature.
Swift SVN r2936
towards optimizing generic calls to derive things from the
'this' pointer, which is actually crucial for virtual
dispatch (to get all methods to agree about how the
implicit arguments are passed). Fix a number of assorted
bugs in metadata emission. Lots of assorted enhancements.
This was proving surprisingly difficult to actually tease
apart into smaller patches.
Swift SVN r2927
