Add AssemblyResolve handler for in-memory assemblies in CodeTaskFactory (#1486)
Add AssemblyResolve handler for in-memory assemblies in CodeTaskFactory (#1486)

* Add AssemblyResolve handler for in-memory assemblies in CodeTaskFactory

Closes #954

cdmihai/msbuild,cdmihai/msbuild,rainersigwald/msbuild,mono/msbuild,mono/msbuild,cdmihai/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,mono/msbuild,chipitsine/msbuild,sean-gilliam/msbuild,jeffkl/msbuild,rainersigwald/msbuild,rainersigwald/msbuild,Microsoft/msbuild,Microsoft/msbuild,Microsoft/msbuild,jeffkl/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,jeffkl/msbuild,rainersigwald/msbuild,Microsoft/msbuild,mono/msbuild,jeffkl/msbuild,chipitsine/msbuild,AndyGerlicher/msbuild,cdmihai/msbuild,chipitsine/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,chipitsine/msbuild