Add support for MSBUILDDEBUGONSTART env. var. for msbuild server client code path. (#7668)
Add support for MSBUILDDEBUGONSTART env. var. for msbuild server client code path. (#7668)


sean-gilliam/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,rainersigwald/msbuild,rainersigwald/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,rainersigwald/msbuild,rainersigwald/msbuild,AndyGerlicher/msbuild