swift234

[SIL] Ensure we mark default argument generators as transparent.

We want the argument generator functions to be treated as transparent iff the "parent" function is transparent. There is no need to special case it in isTransparent because the SILDeclRef contains the :parent" Decl, and the first check will just work for us automatically.

Do make sure that the isTransparent is consulted when the apply instruction is created.

Swift SVN r8224