Fix #3645: Breaking Change: Uniquely identify members of a type when storing the select tree node path.

ILSpy/TreeNodes/EventTreeNode.cs

@@ -104,7 +104,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 
 		public override string ToString()
 		{
-			return EventDefinition.Name;
+			return "Event " + EventDefinition.Name;
 		}
 	}
 }

ILSpy/TreeNodes/FieldTreeNode.cs

@@ -105,7 +105,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 
 		public override string ToString()
 		{
-			return FieldDefinition.Name;
+			return "Field " + FieldDefinition.Name;
 		}
 	}
 }

ILSpy/TreeNodes/MethodTreeNode.cs

@@ -109,7 +109,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 
 		public override string ToString()
 		{
-			return LanguageService.ILLanguage.EntityToString(MethodDefinition, ConversionFlags.None);
+			return "Method " + LanguageService.ILLanguage.EntityToString(MethodDefinition, ConversionFlags.None);
 		}
 	}
 }

ILSpy/TreeNodes/PropertyTreeNode.cs

@@ -107,7 +107,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 
 		public override string ToString()
 		{
-			return LanguageService.ILLanguage.EntityToString(PropertyDefinition, ConversionFlags.None);
+			return "Property " + LanguageService.ILLanguage.EntityToString(PropertyDefinition, ConversionFlags.None);
 		}
 	}
 }