Add removed methods to expected ABI breakage

Author: airspeedswift

test/api-digester/Outputs/stability-stdlib-abi.swift.expected

@@ -7,13 +7,16 @@
 Constructor AnyHashable.init(_box:) has been removed
 Constructor AnyHashable.init(_usingDefaultRepresentationOf:) has been removed
 Constructor ManagedBufferPointer.init(_:_:_:) has been removed
+Constructor _BridgeableMetatype.init(value:) has been removed
 Func AnyHashable._downCastConditional(into:) has been removed
 Func _CocoaDictionary.Index.copy() has been removed
 Func _ContiguousArrayStorage._getNonVerbatimBridgedHeapBuffer() has been removed
 Func _ContiguousArrayStorage._withVerbatimBridgedUnsafeBufferImpl(_:) has been removed
 Func __ContiguousArrayStorageBase._getNonVerbatimBridgedHeapBuffer() has been removed
 Func __EmptyArrayStorage._getNonVerbatimBridgedHeapBuffer() has been removed
 Func __SwiftDeferredNSArray._destroyBridgedStorage(_:) has been removed
+Func _getEnumCaseName(_:) has been removed
+Func _opaqueSummary(_:) has been removed
 Func _stdlib_NSDictionary_allKeys(_:) has been removed
 Func _stdlib_NSSet_allObjects(_:) has been removed
 Protocol _HeapBufferHeader_ has been removed
@@ -23,6 +26,8 @@ Subscript ManagedBufferPointer.subscript(_:) has been removed
 Var ManagedBufferPointer.baseAddress has been removed
 Var ManagedBufferPointer.storage has been removed
 Var ManagedBufferPointer.value has been removed
+Var Optional._nilSentinel has been removed
+Var _BridgeableMetatype.value has been removed
 Var _CocoaDictionary.Index._object has been removed
 Var _CocoaSet.Index._object has been removed
 Var __SwiftDeferredNSArray._heapBufferBridged has been removed
@@ -33,6 +38,7 @@ Var __SwiftDeferredNSArray._heapBufferBridgedPtr has been removed
 /* Renamed Decls */
 
 /* Type Changes */
+Struct _BridgeableMetatype is now without @_fixed_layout
 Func __ContiguousArrayStorageBase._getNonVerbatimBridgingBuffer() is added to a non-resilient type
 Var _CocoaDictionary.Index._offset is added to a non-resilient type
 Var _CocoaDictionary.Index._storage in a non-resilient type changes position from 1 to 0