C#: Add tests and update expected test output.

Author: michaelnebel

csharp/ql/test/library-tests/attributes/AttributeArguments.expected

@@ -106,8 +106,8 @@ arguments
 | attributes.cs:151:6:151:11 | [Params(...)] | 0 | attributes.cs:151:45:151:47 | "a" |
 | attributes.cs:151:6:151:11 | [Params(...)] | 1 | attributes.cs:151:36:151:38 | "b" |
 | attributes.cs:151:6:151:11 | [Params(...)] | 2 | attributes.cs:151:19:151:29 | array creation of type Int32[] |
-| attributes.cs:155:2:155:13 | [Experimental(...)] | 0 | attributes.cs:155:15:155:35 | "MyExperimentalClass" |
-| attributes.cs:158:6:158:17 | [Experimental(...)] | 0 | attributes.cs:158:19:158:40 | "MyExperimentalMethod" |
+| attributes.cs:155:2:155:13 | [Experimental(...)] | 0 | attributes.cs:155:15:155:37 | "MyExperimentalClassId" |
+| attributes.cs:158:6:158:17 | [Experimental(...)] | 0 | attributes.cs:158:19:158:42 | "MyExperimentalMethodId" |
 constructorArguments
 | Assembly1.dll:0:0:0:0 | [Custom(...)] | 0 | Assembly1.dll:0:0:0:0 | 1 |
 | Assembly1.dll:0:0:0:0 | [Custom(...)] | 0 | Assembly1.dll:0:0:0:0 | 3 |
@@ -204,8 +204,8 @@ constructorArguments
 | attributes.cs:151:6:151:11 | [Params(...)] | 0 | attributes.cs:151:45:151:47 | "a" |
 | attributes.cs:151:6:151:11 | [Params(...)] | 1 | attributes.cs:151:36:151:38 | "b" |
 | attributes.cs:151:6:151:11 | [Params(...)] | 2 | attributes.cs:151:19:151:29 | array creation of type Int32[] |
-| attributes.cs:155:2:155:13 | [Experimental(...)] | 0 | attributes.cs:155:15:155:35 | "MyExperimentalClass" |
-| attributes.cs:158:6:158:17 | [Experimental(...)] | 0 | attributes.cs:158:19:158:40 | "MyExperimentalMethod" |
+| attributes.cs:155:2:155:13 | [Experimental(...)] | 0 | attributes.cs:155:15:155:37 | "MyExperimentalClassId" |
+| attributes.cs:158:6:158:17 | [Experimental(...)] | 0 | attributes.cs:158:19:158:42 | "MyExperimentalMethodId" |
 namedArguments
 | Assembly1.dll:0:0:0:0 | [Custom(...)] | Prop2 | Assembly1.dll:0:0:0:0 | array creation of type Object[] |
 | Assembly1.dll:0:0:0:0 | [Custom(...)] | Prop2 | Assembly1.dll:0:0:0:0 | array creation of type Object[] |

csharp/ql/test/library-tests/attributes/ExperimentalAttributes.expected

@@ -0,0 +1,2 @@
+| attributes.cs:156:14:156:32 | MyExperimentalClass | attributes.cs:155:2:155:13 | [Experimental(...)] | MyExperimentalClassId |
+| attributes.cs:159:17:159:36 | MyExperimentalMethod | attributes.cs:158:6:158:17 | [Experimental(...)] | MyExperimentalMethodId |

csharp/ql/test/library-tests/attributes/ExperimentalAttributes.ql

@@ -0,0 +1,6 @@
+import csharp
+import semmle.code.csharp.frameworks.system.diagnostics.CodeAnalysis
+
+from Attributable element, ExperimentalAttribute attribute
+where attribute = element.getAnAttribute() and attribute.fromSource()
+select element, attribute, attribute.getId()

csharp/ql/test/library-tests/attributes/PrintAst.expected

@@ -465,11 +465,11 @@ attributes.cs:
 #-----|   0: (Attributes)
 #  155|     1: [DefaultAttribute] [Experimental(...)]
 #  155|       -1: [TypeMention] ExperimentalAttribute
-#  155|       0: [StringLiteralUtf16] "MyExperimentalClass"
+#  155|       0: [StringLiteralUtf16] "MyExperimentalClassId"
 #  159|   5: [Method] MyExperimentalMethod
 #  159|     -1: [TypeMention] Void
 #-----|     0: (Attributes)
 #  158|       1: [DefaultAttribute] [Experimental(...)]
 #  158|         -1: [TypeMention] ExperimentalAttribute
-#  158|         0: [StringLiteralUtf16] "MyExperimentalMethod"
+#  158|         0: [StringLiteralUtf16] "MyExperimentalMethodId"
 #  159|     4: [BlockStmt] {...}

csharp/ql/test/library-tests/attributes/attributes.cs

@@ -152,9 +152,9 @@ public void M3() { }
     public void M4() { }
 }
 
-[Experimental("MyExperimentalClass")]
+[Experimental("MyExperimentalClassId")]
 public class MyExperimentalClass
 {
-    [Experimental("MyExperimentalMethod")]
+    [Experimental("MyExperimentalMethodId")]
     public void MyExperimentalMethod() { }
 }