32b1d51f16
This is a step toward updating libgo to 1.13. This adds the 1.13 version of the osinit function to Go code, and removes the corresponding code from the C runtime. This should simplify future updates. Some additional 1.13 code was brought in to simplify this change. Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/191717 From-SVN: r275010