Fix potential issue in CoreClrAssemblyLoader (#2857)
Fix potential issue in CoreClrAssemblyLoader (#2857)

While debugging something else, I noticed that CoreClrAssemblyLoader.TryGetWellKnownAssembly is being passed an AssemblyLoadContext but is not using it.

The AssemblyResolve event receives an AssemblyLoadContext but we won't end up respecting it and instead will load it into the default context.
sean-gilliam/msbuild,mono/msbuild,mono/msbuild,chipitsine/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,jeffkl/msbuild,chipitsine/msbuild,cdmihai/msbuild,chipitsine/msbuild,AndyGerlicher/msbuild,AndyGerlicher/msbuild,jeffkl/msbuild,rainersigwald/msbuild,chipitsine/msbuild,Microsoft/msbuild,cdmihai/msbuild,rainersigwald/msbuild,mono/msbuild,Microsoft/msbuild,rainersigwald/msbuild,cdmihai/msbuild,Microsoft/msbuild,sean-gilliam/msbuild,jeffkl/msbuild,rainersigwald/msbuild,jeffkl/msbuild,cdmihai/msbuild,sean-gilliam/msbuild,mono/msbuild,AndyGerlicher/msbuild,Microsoft/msbuild