## crystal-lang/crystal — test-doc-3…test-doc-5

_5 commits._

### Fixes
- **bin/ci fix escape json for interpolation** (5f6bd29)

### Backend
- **give up json in bash.** (f816060)
- **Merge branch 'release/0.18'** (855e925)
- **Rename the `compile` command to `build`. Fixes #502** (bebdd56)
- **Fixed #2828: allow doing `@var = uninitialized T` outside methods** (b1ef2bf)

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