Fix #3118: Add "Clear assembly list" menu item.

ICSharpCode.ILSpyX/AssemblyList.cs

@@ -23,7 +23,6 @@ using System.Collections.Immutable;
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
 using System.Diagnostics;
-using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
 using System.Threading;
@@ -395,6 +394,16 @@ namespace ICSharpCode.ILSpyX
 			}
 		}
 
+		public void Clear()
+		{
+			VerifyAccess();
+			lock (lockObj)
+			{
+				dirty = true;
+				assemblies.Clear();
+				byFilename.Clear();
+			}
+		}
 		public void Sort(IComparer<LoadedAssembly> comparer)
 		{
 			Sort(0, int.MaxValue, comparer);

ILSpy/Commands/RemoveAssembliesWithLoadErrors.cs

@@ -16,8 +16,6 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
-using System;
-using System.Collections.Generic;
 using System.Linq;
 
 using ICSharpCode.ILSpy.Properties;
@@ -44,4 +42,18 @@ namespace ICSharpCode.ILSpy
 			}
 		}
 	}
+
+	[ExportMainMenuCommand(ParentMenuID = nameof(Resources._File), Header = nameof(Resources.ClearAssemblyList), MenuCategory = nameof(Resources.Remove), MenuOrder = 2.6)]
+	class ClearAssemblyList : SimpleCommand
+	{
+		public override bool CanExecute(object parameter)
+		{
+			return MainWindow.Instance.CurrentAssemblyList?.Count > 0;
+		}
+
+		public override void Execute(object parameter)
+		{
+			MainWindow.Instance.CurrentAssemblyList?.Clear();
+		}
+	}
 }

ILSpy/Properties/Resources.Designer.cs

@@ -495,6 +495,15 @@ namespace ICSharpCode.ILSpy.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Clear assembly list.
+        /// </summary>
+        public static string ClearAssemblyList {
+            get {
+                return ResourceManager.GetString("ClearAssemblyList", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Close.
         /// </summary>

ILSpy/Properties/Resources.resx

@@ -186,6 +186,9 @@ Are you sure you want to continue?</value>
   <data name="Checking" xml:space="preserve">
     <value>Checking...</value>
   </data>
+  <data name="ClearAssemblyList" xml:space="preserve">
+    <value>Clear assembly list</value>
+  </data>
   <data name="Close" xml:space="preserve">
     <value>Close</value>
   </data>