32-bit iOS 9 simulator and 32-bit watchOS 2 simulator do not support
C++ thread_local, even though clang's has_feature(cxx_thread_local)
thinks they do.
rdar://35063043
This is a smorgasbord of warning cleanups in the runtime. This just
adjusts the casts for the various types. There were a number of casts
which lost const qualifiers on the type.
* Extend Swift runtime issue reporting for @objc inference to include details about the declaration of the method (that is missing the @objc annotation) and a suggested fix-it. This changes the ABI of RuntimeErrorDetails, so we're also bumping the version.
* Update SwiftObject.mm
* Implements a debugger hook (breakpoint) API and data structure. This structure is passed to the debugger and describes extra information about a fatal error or a non-fatal warning, which should be logged as a runtime issue.
This debugger hook is then used from two places, which currently only log to stderr:
- Runtime exclusivity violations.
- Swift 3 implicit Obj-C entrypoints.
A subsequent LLDB support will be able to catch these callbacks and show the runtime issues in a better way than just logging them to stderr. When the debugger is not attached, this shouldn't have any effect.
