[Diagnostics] A couple of clean-ups for AddMissingArguments
#27215
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…gnostic Instead of storing contextual function type in the fix/diagnostic, let's fetch it from context (solution and/or locator) because it's only used when it is a trailing closure missing some arguments anyway.
…a missing arguments fix
Expand tuple into N arguments to cover expect parameters.
This covers cases like this:
```swift
func foo(_: (Int, Int) -> Void) {}
foo { (bar: (Int, Int)) in } // used a single tuple type `(Int, Int)`
// instead of two distinct arguments
```
…th missing args
`MissingArgumentsFailure::diagnoseClosure` can actually diagnose both
closures in argument positions as well as when their type comes from
context e.g. `let _: (Int) -> Void = {}`.
|
@swift-ci please smoke test |
hborla
approved these changes
Sep 17, 2019
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In preparation to extend this fix to support more then just closures:
Expand tuple into N arguments to cover expect parameters.
This covers cases like this:
missing argumentdiagnostic to support closures with captures