[WIP] Hash table unification

stdlib/public/SwiftShims/GlobalObjects.h

@@ -54,10 +54,12 @@ struct _SwiftDictionaryBodyStorage {
 };
 
 struct _SwiftSetBodyStorage {
-  __swift_intptr_t capacity;
-  __swift_intptr_t count;
-  struct _SwiftUnsafeBitMap initializedEntries;
-  void *keys;
+  __swift_uint64_t count;
+  __swift_uint64_t capacity;
+  __swift_uint64_t scale;
+  __swift_uint64_t seed0;
+  __swift_uint64_t seed1;
+  void *rawElements;
 };
 
 struct _SwiftEmptyDictionaryStorage {

stdlib/public/core/ArrayShared.swift

@@ -61,7 +61,6 @@ func _deallocateUninitializedArray<Element>(
 // Utility method for collections that wish to implement CustomStringConvertible
 // and CustomDebugStringConvertible using a bracketed list of elements,
 // like an array.
-@inlinable // FIXME(sil-serialize-all)
 internal func _makeCollectionDescription<C: Collection>
   (for items: C, withTypeName type: String?) -> String {
   var result = ""