| This is a partial copy of strconv.Parse* from Go 1.13.6, converted to | |
| use []byte (and stripped of the overly complex extFloat fast-path). | |
| It makes me sad that we have to do this, but see golang.org/issue/2632. | |
| We can eliminate this if golang.org/issue/43752 (or more generally, | |
| golang.org/issue/2205) gets fixed. |