tree a0fae989c5e46f15207a67bdb071154addb2be5e
parent 730c85102523128631d5308c14772b75cfd2025b
author Nate Bosch <nbosch1@gmail.com> 1602102341 -0700
committer GitHub <noreply@github.com> 1602102341 -0700
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Rewrite asciiUpper2Lower as an extension (#132)

- Switch to an extension method which will work nicer with `?.` instead
  of needing to handle a null argument and has nicer looking usage.
- Rename to `toAsciiLowerCase` for consistency with the similar method
  in the SDK.
- Use `Iterable.map` to avoid needing to create a fixed size list which
  will not work well with the null safety migration.

This method is an internal detail and this is not breaking.