C#: Update remaining tests.

Author: michaelnebel

csharp/ql/test/library-tests/frameworks/EntityFramework/Dataflow.expected

@@ -84,6 +84,7 @@ edges
 | EntityFramework.cs:219:18:219:54 | call to method First<Address> [property Street] : String | EntityFramework.cs:219:18:219:61 | access to property Street |
 | EntityFrameworkCore.cs:75:31:75:39 | "tainted" : String | EntityFrameworkCore.cs:76:18:76:28 | access to local variable taintSource |
 | EntityFrameworkCore.cs:75:31:75:39 | "tainted" : String | EntityFrameworkCore.cs:77:35:77:45 | access to local variable taintSource : String |
+| EntityFrameworkCore.cs:75:31:75:39 | "tainted" : String | EntityFrameworkCore.cs:78:18:78:42 | (...) ... |
 | EntityFrameworkCore.cs:75:31:75:39 | "tainted" : String | EntityFrameworkCore.cs:78:32:78:42 | access to local variable taintSource : String |
 | EntityFrameworkCore.cs:77:18:77:46 | object creation of type RawSqlString : RawSqlString | EntityFrameworkCore.cs:77:18:77:46 | (...) ... |
 | EntityFrameworkCore.cs:77:35:77:45 | access to local variable taintSource : String | EntityFrameworkCore.cs:77:18:77:46 | object creation of type RawSqlString : RawSqlString |

csharp/ql/test/library-tests/frameworks/test/Assertions.expected

@@ -1,5 +1,4 @@
 assertTrue
-| ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:9:28:9:33 | IsTrue | ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:9:40:9:40 | b |
 | DoesNotReturnIf.cs:8:22:8:31 | AssertTrue | DoesNotReturnIf.cs:8:95:8:103 | condition |
 | DoesNotReturnIf.cs:16:22:16:32 | AssertTrue2 | DoesNotReturnIf.cs:17:75:17:84 | condition1 |
 | DoesNotReturnIf.cs:16:22:16:32 | AssertTrue2 | DoesNotReturnIf.cs:18:75:18:84 | condition2 |
@@ -11,20 +10,17 @@ assertTrue
 | nunit.cs:53:21:53:24 | That | nunit.cs:53:31:53:39 | condition |
 | nunit.cs:54:21:54:24 | That | nunit.cs:54:31:54:39 | condition |
 assertFalse
-| ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:10:28:10:34 | IsFalse | ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:10:41:10:41 | b |
 | DoesNotReturnIf.cs:12:22:12:32 | AssertFalse | DoesNotReturnIf.cs:12:95:12:103 | condition |
 | nunit.cs:34:21:34:25 | False | nunit.cs:34:32:34:40 | condition |
 | nunit.cs:35:21:35:25 | False | nunit.cs:35:32:35:40 | condition |
 | nunit.cs:37:21:37:27 | IsFalse | nunit.cs:37:34:37:42 | condition |
 | nunit.cs:38:21:38:27 | IsFalse | nunit.cs:38:34:38:42 | condition |
 assertNull
-| ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:7:28:7:33 | IsNull | ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:7:42:7:42 | o |
 | nunit.cs:40:21:40:24 | Null | nunit.cs:40:33:40:40 | anObject |
 | nunit.cs:41:21:41:24 | Null | nunit.cs:41:33:41:40 | anObject |
 | nunit.cs:43:21:43:26 | IsNull | nunit.cs:43:35:43:42 | anObject |
 | nunit.cs:44:21:44:26 | IsNull | nunit.cs:44:35:44:42 | anObject |
 assertNonNull
-| ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:8:28:8:36 | IsNotNull | ../../../resources/stubs/Microsoft.VisualStudio.TestTools.UnitTesting.cs:8:45:8:45 | o |
 | nunit.cs:46:21:46:27 | NotNull | nunit.cs:46:36:46:43 | anObject |
 | nunit.cs:47:21:47:27 | NotNull | nunit.cs:47:36:47:43 | anObject |
 | nunit.cs:49:21:49:29 | IsNotNull | nunit.cs:49:38:49:45 | anObject |