Change non_virtual_calls_to_instance_methods test to non-il-sdk format (#27952)

* Change non_virtual_calls_to_instance_methods test to non-il-sdk format

* Work around maxpath hit by method name

* Fix compile item to short file name

Author: hoyosjs

tests/src/Loader/classloader/DefaultInterfaceMethods/sharedgenerics/non_virtual_calls_to_instance_methods.cs renamed to tests/src/Loader/classloader/DefaultInterfaceMethods/nonvirtcall_instmethods/nonvirtcall_instmethods.cs

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup>
+    <AssemblyName>$(MSBuildProjectName)</AssemblyName>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <ReferenceLocalMscorlib>true</ReferenceLocalMscorlib>
+    <OutputType>Exe</OutputType>
+    <CLRTestKind>BuildAndRun</CLRTestKind>
+    <CLRTestPriority>0</CLRTestPriority>
+    <!-- See https://github.com/dotnet/coreclr/issues/25690 -->
+    <GCStressIncompatible>true</GCStressIncompatible>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <DebugType></DebugType>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Include="nonvirtcall_instmethods.il" />
+  </ItemGroup>
+
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+</Project>