Andrew Trick ecc6bd51ad Type system support for raw pointer conversion. (#3685) ...

* [Type System] Handle raw pointer conversion.

As proposed in SE-0107: UnsafeRawPointer.
https://github.com/apple/swift-evolution/blob/master/proposals/0107-unsaferawpointer.md#implicit-argument-conversion

UnsafeMutablePointer<T> -> UnsafeMutableRawPointer
UnsafeMutablePointer<T> -> UnsafeRawPointer
UnsafePointer<T> -> UnsafeRawPointer
UnsafeMutableRawPointer -> UnsafeRawPointer

inout:
&anyVar -> UnsafeMutableRawPointer
&anyVar -> UnsafeRawPointer

array -> UnsafeRawPointer
string -> UnsafeRawPointer

varArray -> UnsafeMutableRawPointer

* Rename expectEqual(_, _, sameValue:) to expectEqualTest to workaround a type system bug.

<rdar://26058520> Generic type constraints incorrectly applied to functions with the same name

This is exposed by additions to the type system for UnsafeRawPointer.

Warning: unit tests fail very confusingly without this fix.

2016-07-23 11:30:49 -07:00

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