Fix missing AssemblyResolver in ILSpyWholeProjectDecompiler.

ICSharpCode.Decompiler/CSharp/WholeProjectDecompiler.cs

@@ -80,7 +80,7 @@ namespace ICSharpCode.Decompiler.CSharp
 		/// </remarks>
 		protected string targetDirectory;
 
-		public void DecompileProject(Metadata.PEFile moduleDefinition, string targetDirectory, CancellationToken cancellationToken = default(CancellationToken))
+		public void DecompileProject(PEFile moduleDefinition, string targetDirectory, CancellationToken cancellationToken = default(CancellationToken))
 		{
 			string projectFileName = Path.Combine(targetDirectory, CleanUpFileName(moduleDefinition.Name) + ".csproj");
 			using (var writer = new StreamWriter(projectFileName)) {
@@ -88,7 +88,7 @@ namespace ICSharpCode.Decompiler.CSharp
 			}
 		}
 
-		public void DecompileProject(Metadata.PEFile moduleDefinition, string targetDirectory, TextWriter projectFileWriter, CancellationToken cancellationToken = default(CancellationToken))
+		public void DecompileProject(PEFile moduleDefinition, string targetDirectory, TextWriter projectFileWriter, CancellationToken cancellationToken = default(CancellationToken))
 		{
 			if (string.IsNullOrEmpty(targetDirectory)) {
 				throw new InvalidOperationException("Must set TargetDirectory");

ILSpy/Languages/CSharpLanguage.cs

@@ -380,6 +380,7 @@ namespace ICSharpCode.ILSpy
 				this.assembly = assembly;
 				this.options = options;
 				base.Settings = options.DecompilerSettings;
+				base.AssemblyResolver = assembly.GetAssemblyResolver();
 			}
 
 			protected override IEnumerable<Tuple<string, string>> WriteResourceToFile(string fileName, string resourceName, Stream entryStream)