fix(net6): restore xamarin-like ios exception marshaling for performance

Author: jeromelaban

src/SolutionTemplate/UnoSolutionTemplate.net6/Mobile/UnoQuickStart.Mobile.csproj

@@ -44,6 +44,9 @@
 		<When Condition="'$(TargetFramework)'=='net6.0-ios'">
 		  	<PropertyGroup Condition="'$(TargetFramework)'=='net6.0-ios'">
 				<MtouchExtraArgs>$(MtouchExtraArgs) --setenv=MONO_GC_PARAMS=soft-heap-limit=512m,nursery-size=64m,evacuation-threshold=66,major=marksweep,concurrent-sweep</MtouchExtraArgs>
+								
+				<!-- https://github.com/xamarin/xamarin-macios/issues/14812 -->
+				<MtouchExtraArgs>$(MtouchExtraArgs) --marshal-objectivec-exceptions:disable</MtouchExtraArgs>
 			</PropertyGroup>
 			<ItemGroup>
 				<PackageReference Include="Uno.Extensions.Logging.OSLog" Version="1.3.0" />
@@ -57,6 +60,9 @@
 				<!-- Required for unknown crash as of .NET 6 Mobile Preview 13 -->
 				<MtouchExtraArgs>$(MtouchExtraArgs) --registrar:static</MtouchExtraArgs>
 
+				<!-- https://github.com/xamarin/xamarin-macios/issues/14812 -->
+				<MtouchExtraArgs>$(MtouchExtraArgs) --marshal-objectivec-exceptions:disable</MtouchExtraArgs>
+
 				<!-- Full globalization is required for Uno -->
 				<InvariantGlobalization>false</InvariantGlobalization>
 			</PropertyGroup>