Ram Watch - set the CurrentFileName property during LoadFile, fixes some subtle bugs that resulted from a loaded watch with an empty name

BizHawk.Client.Common/tools/WatchList.cs

@@ -525,6 +525,7 @@ namespace BizHawk.Client.Common
 				}
 
 				Domain = Global.Emulator.MemoryDomains[domain] ?? Global.Emulator.MemoryDomains.MainMemory;
+				_currentFilename = path;
 			}
 
 			if (!append)

BizHawk.Client.EmuHawk/tools/Watch/RamWatch.cs

@@ -517,8 +517,6 @@ namespace BizHawk.Client.EmuHawk
 				}
 			}
 
-			var test1 = _watches.Any(watch => (watch.Address ?? 0) >= watch.Domain.Size);
-
 			ErrorIconButton.Visible = _watches.Any(watch => (watch.Address ?? 0) >= watch.Domain.Size);
 
 			MessageLabel.Text = message;