[windows] Add testscase for self-contained executables and fix pthread linking#71023

Merged

bors merged 2 commits intorust-lang:masterfrom mati865:mingw-unwind-linking-cleanup

Apr 13, 2020

+14-2

Commits on Apr 11, 2020

[windows] Add testcase to make sure executables are self-contained
mati865
committed

Commits on Apr 12, 2020

[windows-gnu] Link pthread statically
mati865
committed