Fix build with latest roslyn

Author: am11

test/EFCore.Specification.Tests/CustomConvertersTestBase.cs

@@ -1184,8 +1184,8 @@ protected override void OnModelCreating(ModelBuilder modelBuilder, DbContext con
                     b.Property(e => e.ByteArray5)
                         .HasConversion(
                             new ValueConverter<byte[], byte[]>(
-                                v => v.Reverse().Concat(new byte[] { 4, 20 }).ToArray(),
-                                v => v.Reverse().Skip(2).ToArray()),
+                                v => Enumerable.Reverse(v).Concat(new byte[] { 4, 20 }).ToArray(),
+                                v => Enumerable.Reverse(v).Skip(2).ToArray()),
                             bytesComparer)
                         .HasMaxLength(7);
 

test/EFCore.Specification.Tests/Query/PrimitiveCollectionsQueryTestBase.cs

@@ -427,10 +427,10 @@ public virtual async Task Parameter_collection_of_strings_Contains_nullable_stri
 
         await AssertQuery(
             async,
-            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => strings.Contains(c.NullableString)));
+            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => strings.Any(s => s == c.NullableString)));
         await AssertQuery(
             async,
-            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => !strings.Contains(c.NullableString)));
+            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => !strings.Any(s => s == c.NullableString)));
     }
 
     [ConditionalTheory]
@@ -574,7 +574,7 @@ public virtual Task Column_collection_of_nullable_ints_Contains_null(bool async)
     public virtual Task Column_collection_of_strings_contains_null(bool async)
         => AssertQuery(
             async,
-            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => c.Strings.Contains(null)),
+            ss => ss.Set<PrimitiveCollectionsEntity>().Where(c => c.Strings.Any(s => s == null)),
             assertEmpty: true);
 
     [ConditionalTheory]