[ObjC] Fix parsing method type encoding strings for 32-bit platforms

Incorrect parsing of method type encoding strings was causing incorrect
function types to be applied to Objective-C method implementations. In
some cases this would result in confusion about which stack locations
specific parameters resided at.

`q`, `Q` and `d` were being mapped to `NSInteger`, `NSUInteger` and
`CGFloat` respectively. While this works for 64-bit platforms, the type
aliases refer to 32-bit types on 32-bit platforms.  These type encodings
are explicitly for 64-bit types. To address this `q`, `Q` and `d` are
now mapped to `int64_t`, `uint64_t` and `double` respectively.

`l` and `L` were incorrectly being interpreted as `int64_t` and
`uint64_t`. While `long` is a 64-bit type on 64-bit Apple platforms, the
`l` / `L` type encodings always refer to a 32-bit type.

`S` was mistakenly being mapped to `uint8_t`. It is now `uint16_t` as
intended.

0 files changed, 0 insertions, 0 deletions