Fix invalid file name when dumping compiler-generated methods (BepInE…

…x#99)

I wasn't sure by which characters I should replace < and > with, but this fixes the dump when patching a compiler-generated method.

Harmony/Internal/Util/CecilEmitter.cs

@@ -27,7 +27,7 @@ internal static class CecilEmitter
 
 	public static void Dump(MethodDefinition md, IEnumerable<string> dumpPaths, MethodBase original = null)
 	{
-		var name = $"HarmonyDump.{md.GetID(withType: false, simple: true).Replace(":", "_").Replace(" ", "_")}.{Guid.NewGuid().GetHashCode():X8}";
+		var name = $"HarmonyDump.{SanitizeTypeName(md.GetID(withType: false, simple: true))}.{Guid.NewGuid().GetHashCode():X8}";
 		var originalName = (original?.Name ?? md.Name).Replace('.', '_');
 		using var module = ModuleDefinition.CreateModule(name,
 			new ModuleParameters
@@ -120,4 +120,13 @@ operand is FieldReference fref &&
 			}
 		}
 	}
+
+	private static string SanitizeTypeName(string typeName)
+	{
+		return typeName
+			.Replace(":", "_")
+			.Replace(" ", "_")
+			.Replace("<", "{")
+			.Replace(">", "}");
+	}
 }