[wg-async-await] Drop `async fn` arguments in async block - #59135

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davidtwco wants to merge 7 commits into

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davidtwco:issue-54716

Commits on Mar 24, 2019

Add test for drop order in async functions.
davidtwco
committed
5ce3540
Introduce `LocalSource` into the AST.
davidtwco
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d1be529
Add `AsyncArgument` to AST.
davidtwco
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70b7b78
Move `async fn` arguments into closure.
davidtwco
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f566e98
Enforce consistent drop order w/ async methods.
davidtwco
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f8150f4
Do not specify type in generated let bindings.
davidtwco
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ea93cb5
Introduce `ArgSource` for diagnostics.
davidtwco
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468bbb8