C#: Update some tuple related tests.

Author: michaelnebel

csharp/ql/test/library-tests/assignables/Assignables.expected

@@ -43,12 +43,6 @@
 | Assignables.cs:92:23:92:23 | b |
 | Assignables.cs:92:33:92:33 | s |
 | Assignables.cs:95:40:95:44 | tuple |
-| Assignables.cs:97:24:97:24 | Item1 |
-| Assignables.cs:97:27:97:36 | Item2 |
-| Assignables.cs:101:6:101:8 | Item1 |
-| Assignables.cs:101:11:101:24 | Item2 |
-| Assignables.cs:101:12:101:15 | Item1 |
-| Assignables.cs:101:18:101:23 | Item2 |
 | Assignables.cs:108:13:108:13 | i |
 | Assignables.cs:109:14:109:14 | p |
 | Assignables.cs:113:25:113:25 | i |
@@ -69,8 +63,6 @@
 | Assignables.cs:132:13:132:13 | x |
 | Assignables.cs:133:29:133:29 | s |
 | Assignables.cs:138:19:138:19 | x |
-| Discards.cs:5:6:5:8 | Item1 |
-| Discards.cs:5:11:5:16 | Item2 |
 | Discards.cs:5:30:5:30 | x |
 | Discards.cs:19:14:19:14 | x |
 | Discards.cs:20:17:20:17 | y |

csharp/ql/test/library-tests/csharp7/TupleTypes.expected

@@ -1,12 +1,8 @@
-| (Int32,(String,Int32)) | (int, (string, int)) | ValueTuple<int, (string, int)> | 2 | 0 | CSharp7.cs:96:19:96:19 | Item1 |
-| (Int32,(String,Int32)) | (int, (string, int)) | ValueTuple<int, (string, int)> | 2 | 1 | CSharp7.cs:102:22:102:46 | Item2 |
-| (Int32,Double) | (int, double) | ValueTuple<int, double> | 2 | 0 | CSharp7.cs:213:6:213:8 | Item1 |
-| (Int32,Double) | (int, double) | ValueTuple<int, double> | 2 | 1 | CSharp7.cs:213:11:213:16 | Item2 |
-| (Int32,Int32) | (int, int) | ValueTuple<int, int> | 2 | 0 | CSharp7.cs:62:10:62:10 | Item1 |
-| (Int32,Int32) | (int, int) | ValueTuple<int, int> | 2 | 1 | CSharp7.cs:62:17:62:17 | Item2 |
-| (Int32,String) | (int, string) | ValueTuple<int, string> | 2 | 0 | CSharp7.cs:95:19:95:19 | Item1 |
-| (Int32,String) | (int, string) | ValueTuple<int, string> | 2 | 1 | CSharp7.cs:95:22:95:37 | Item2 |
-| (String,Int32) | (string, int) | ValueTuple<string, int> | 2 | 0 | CSharp7.cs:82:17:82:17 | Item1 |
-| (String,Int32) | (string, int) | ValueTuple<string, int> | 2 | 1 | CSharp7.cs:82:23:82:23 | Item2 |
-| (String,String) | (string, string) | ValueTuple<string, string> | 2 | 0 | CSharp7.cs:87:19:87:27 | Item1 |
-| (String,String) | (string, string) | ValueTuple<string, string> | 2 | 1 | CSharp7.cs:87:30:87:33 | Item2 |
+| (Int32,(String,Int32)) | (int, (string, int)) | ValueTuple<int, (string, int)> | 2 | 0 | Item1 |
+| (Int32,(String,Int32)) | (int, (string, int)) | ValueTuple<int, (string, int)> | 2 | 1 | Item2 |
+| (Int32,Double) | (int, double) | ValueTuple<int, double> | 2 | 0 | Item1 |
+| (Int32,Double) | (int, double) | ValueTuple<int, double> | 2 | 1 | Item2 |
+| (Int32,String) | (int, string) | ValueTuple<int, string> | 2 | 0 | Item1 |
+| (Int32,String) | (int, string) | ValueTuple<int, string> | 2 | 1 | Item2 |
+| (String,String) | (string, string) | ValueTuple<string, string> | 2 | 0 | Item1 |
+| (String,String) | (string, string) | ValueTuple<string, string> | 2 | 1 | Item2 |

csharp/ql/test/library-tests/csharp7/TupleTypes.ql

@@ -1,6 +1,6 @@
 import csharp
 
 from TupleType tt, int i
-where tt.getAnElement().fromSource()
+where tt.fromSource()
 select tt.getName(), tt.toStringWithTypes(), tt.getUnderlyingType().toStringWithTypes(),
-  tt.getArity(), i, tt.getElement(i)
+  tt.getArity(), i, tt.getElement(i).getName()