Enable strict memory safety in the SwiftOnoneSupport module

Author: DougGregor

stdlib/public/SwiftOnoneSupport/SwiftOnoneSupport.swift

@@ -306,10 +306,10 @@ func _prespecializeIndexingIterator<Elements>(_ x: IndexingIterator<Elements>) w
 func prespecializeCollections<T>(_ element: T) {
   var umbp = UnsafeMutableBufferPointer<T>.allocate(capacity: 1)
   let cmp = { (_: T, _: T) in return false }
-  umbp._prespecializeMutableBirectionalCollection(range: 0..<0)
-  umbp._prespecializeMutableBirectionalCollection(range: 0..<0, cmp: cmp)
-  umbp._prespecializeMutableBirectionalCollection(range: 0..<0, end: 0, cmp: cmp)
-  try! umbp._prespecializeMutableRandomAccessCollection(cmp: cmp)
+  unsafe umbp._prespecializeMutableBirectionalCollection(range: 0..<0)
+  unsafe umbp._prespecializeMutableBirectionalCollection(range: 0..<0, cmp: cmp)
+  unsafe umbp._prespecializeMutableBirectionalCollection(range: 0..<0, end: 0, cmp: cmp)
+  try! unsafe umbp._prespecializeMutableRandomAccessCollection(cmp: cmp)
 
   let _: (Array<T>, Builtin.RawPointer) = _prespecializeArray(0._builtinWordValue)
 
@@ -319,20 +319,20 @@ func prespecializeCollections<T>(_ element: T) {
   array._prespecializeArray(index: 0, flag: false)
   array._prespecializeArray(index: 0, flag: false, token: _DependenceToken())
   array._prespecializeArray(arrayLiteral: element)
-  array._prespecializeArray(capacity: 0) { (_: inout UnsafeMutableBufferPointer<T>, _: inout Int) in return }
+  unsafe array._prespecializeArray(capacity: 0) { (_: inout UnsafeMutableBufferPointer<T>, _: inout Int) in return }
   array._prespecializeArray(flag: false)
   array._prespecializeArray(index: 0)
   array._prespecializeArray(index: 0, element: element)
   array._prespecializeArray(element: element, index: 0)
   array._prespecializeArray(range: 0..<0, collection: EmptyCollection())
-  array._prespecializeArray(with: { (_: inout UnsafeMutableBufferPointer<T>) -> Optional<()> in return () })
+  unsafe array._prespecializeArray(with: { (_: inout UnsafeMutableBufferPointer<T>) -> Optional<()> in return () })
   array._prespecializeBidirectionalCollection()
   array._prespecializeRandomAccessCollection()
   try! array._prespecializeMutableRandomAccessCollection(cmp: cmp)
 
   let cab = _ContiguousArrayBuffer<T>()
   cab._prespecializeContiguousArrayBuffer()
-  cab._prespecializeContiguousArrayBuffer(range: (0..<0), pointer: umbp.baseAddress!)
+  unsafe cab._prespecializeContiguousArrayBuffer(range: (0..<0), pointer: umbp.baseAddress!)
   cab._prespecializeContiguousArrayBuffer(count: 0, capacity: 0)
   cab._prespecializeContiguousArrayBuffer(buffer: cab, index: 0)
 
@@ -341,7 +341,7 @@ func prespecializeCollections<T>(_ element: T) {
   ab._prespecializeArrayBuffer()
   ab._prespecializeArrayBuffer(index: 0)
   ab._prespecializeArrayBuffer(range: (0..<0))
-  ab._prespecializeArrayBuffer(range: (0..<0), pointer: umbp.baseAddress!)
+  unsafe ab._prespecializeArrayBuffer(range: (0..<0), pointer: umbp.baseAddress!)
   ab._prespecializeArrayBuffer(index: 0, flag: false)
   ab._prespecializeArrayBuffer(buffer: cab, index: 0)
   ab._prespecializeRandomAccessCollection(after: 0)