[abi] override the judgment of the abi stability test

Author: glessard

test/api-digester/stability-stdlib-abi-without-asserts.test

@@ -91,5 +91,9 @@ Func UnsafeMutablePointer.withMemoryRebound(to:capacity:_:) has been removed
 Func UnsafePointer.withMemoryRebound(to:capacity:_:) has been removed
 Func UnsafeMutableRawBufferPointer.storeBytes(of:toByteOffset:as:) has been removed
 Func UnsafeMutableRawPointer.storeBytes(of:toByteOffset:as:) has been removed
+Func UnsafeMutableBufferPointer.assign(repeating:) has been removed
+Func UnsafeMutablePointer.assign(from:count:) has been removed
+Func UnsafeMutablePointer.assign(repeating:count:) has been removed
+Func UnsafeMutablePointer.moveAssign(from:count:) has been removed
 
 // *** DO NOT DISABLE OR XFAIL THIS TEST. *** (See comment above.)