Fix compiler warnings related to Crystal 1.14 #232
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Fixes deprecation warnings of the form:
```
In spec/sql/select/lock_spec.cr:22:7
22 | sleep(0.05) # Give hand to the other fiber. Now it should be not locked anymore?
^----
Warning: Deprecated ::sleep. Use `::sleep(Time::Span)` instead
```
Fixes:
```
In src/clear/expression/expression.cr:86:17
86 | def to_json(b = nil)
^
Warning: positional parameter 'b' corresponds to parameter 'x' of the overridden method Clear::Expression::Literal#to_json(x : JSON::Builder), which has a different name and may affect named argument passing
```
mloughran
changed the title
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Description
This fixes compiler warnings, which I've detailed in the commit commits. This should be a no-op change.
Motivation and Context
Clean buids.
How Has This Been Tested?
Types of changes
Checklist:
bin/amebaran without alert.