Audit reflection usage in our assemblies

[radekdoulik]

The ILlink is now doing reflection analysis resulting in reported warnings. Context: https://github.com/mono/linker/blob/master/docs/design/reflection-flow.md

We should audit our reflection usage by checking the reported warnings and look into how to solve these. (by updating the code where needed or suppressing the warnings)

Example output:

...
                     ILlinker : Unrecognized reflection pattern warning IL2006: Reflection call 'System.Type System.Type::GetType(System.String,System.Func`2<System.Reflection.AssemblyName,System.Reflection.Assembly>,System.Func`4<System.Reflection.Assembly,System.String,System.Boolean,System.Type>,System.Boolean,System.Boolean,System.Threading.StackCrawlMark&)' inside 'System.Type System.Type::GetType(System.String,System.Func`2<System.Reflection.AssemblyName,System.Reflection.Assembly>,System.Func`4<System.Reflection.Assembly,System.String,System.Boolean,System.Type>,System.Boolean)' was detected with unknown value for the type name. [/Users/runner/runners/2.168.2/work/1/s/bin/TestRelease/temp/DotNetBuildandroid.21-armTrue/UnnamedProject.csproj]
                     ILlinker : Unrecognized reflection pattern warning IL2006: The parameter 'nullableType' of method 'System.Void System.Linq.Expressions.Compiler.ILGen::EmitGetValue(System.Reflection.Emit.ILGenerator,System.Type)' with dynamically accessed member kinds 'None' is passed into the parameter '' of method 'System.Reflection.MethodInfo System.Type::GetMethod(System.String,System.Reflection.BindingFlags)' which requires dynamically accessed member kinds 'PublicMethods'. To fix this add DynamicallyAccessedMembersAttribute to it and specify at least these member kinds 'PublicMethods'. [/Users/runner/runners/2.168.2/work/1/s/bin/TestRelease/temp/DotNetBuildandroid.21-armTrue/UnnamedProject.csproj]

    115 Warning(s)
    0 Error(s)

[radekdoulik]

Related: #5652

[jonathanpeppers]

I think we can close this in favor of #5652