fix Win32Exception Access is denied (#544)

#542

Author: SimonCropp

src/DiffEngineTray/GlobalUsings.cs

@@ -0,0 +1,4 @@
+// Global using directives
+
+global using System.ComponentModel;
+global using Microsoft.Win32.SafeHandles;

src/DiffEngineTray/ProcessEx.cs

@@ -1,5 +1,3 @@
-using Microsoft.Win32.SafeHandles;
-
 static class ProcessEx
 {
     [DllImport("kernel32.dll", ExactSpelling = true, SetLastError = true)]
@@ -46,6 +44,11 @@ public static void KillAndDispose(this Process process)
         {
             // Race condition can cause "No process is associated with this object"
         }
+        catch (Win32Exception)
+        {
+            // no permission or already closed
+            // https://github.com/VerifyTests/DiffEngine/issues/542
+        }
         catch (Exception exception)
         {
             ExceptionHandler.Handle($"Failed to kill process. Id:{process.Id} Name: {process.MainModule?.FileName}", exception);

src/Directory.Build.props

@@ -2,7 +2,7 @@
 <Project>
   <PropertyGroup>
     <NoWarn>CS1591;CS0649</NoWarn>
-    <Version>15.5.1</Version>
+    <Version>15.5.2</Version>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <PackageTags>Testing, Snapshot, Diff, Compare</PackageTags>
     <Description>Launches diff tools based on file extensions. Designed to be consumed by snapshot testing libraries.</Description>