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Rollup of 5 pull requests #73049

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r? @ghost

tblah and others added 15 commits June 4, 2020 12:02
LLVM 10 includes a009a60 which will
print value numbers for unnamed func args.

Update these tests to be in line with the referenced clang tests.
It isn't clear to me if this is a bug or not, hence the FIXME
- lint: add `feature_gate` field, allow specifying it in `declare_lint!`

- generalize the lint feature gate check

- librustdoc: generalize whitelisting of feature-gated lints
…70924, r=nikomatsakis

run-make regression test for issue rust-lang#70924.

Sometime after my PR rust-lang#72767 (to fix issue rust-lang#70924) landed, I realized that I *could* make a local regression test, thanks to `rustc --print sysroot`: I can make a fresh "copy" (really mostly symlinks) of the sysroot, and then modify it to recreate the terms of this bug.
… r=petrochenkov

Properly handle feature-gated lints

Closes rust-lang#72694
…atsakis

Fix codegen tests for RISC-V

Some codegen tests didn't seem relevant (e.g. unsupported annotations).

The RISC-V abi tests were broken by LLVM 10, c872dcf fixes that (cc: @msizanoen1)

I'm not sure about skipping catch-unwind.rs and included that change here mostly as a request for comment - I can't tell if that's a bug.
…u16, r=sfackler

impl ToSocketAddrs for (String, u16)

This adds a convenience impl of `ToSocketAddrs for (String, u16)`. When authoring HTTP services it's common to take command line options for `host` and `port` and parse them into `String` and `u16` respectively. Consider the following program:
```rust
#[derive(Debug, StructOpt)]
struct Config {
    host: String,
    port: u16,
}

async fn main() -> io::Result<()> {
    let config = Config::from_args();
    let stream = TcpStream::connect((&*config.host, config.port))?; // &* is not ideal
    // ...
}
```

Networking is a pretty common starting point for people new to Rust, and seeing `&*` in basic examples can be confusing. Even as someone that has experience with networking in Rust I tend to forget that `String` can't be passed directly there. Instead with this patch we can omit the `&*` conversion and pass `host` directly:
```rust
#[derive(Debug, StructOpt)]
struct Config {
    host: String,
    port: u16,
}

async fn main() -> io::Result<()> {
    let config = Config::from_args();
    let stream = TcpStream::connect((config.host, config.port))?; // no more conversions!
    // ...
}
```

I think should be an easy and small ergonomics improvement for networking. Thanks!
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@bors r+ rollup=never p=5

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bors commented Jun 6, 2020

📌 Commit 450a1b6 has been approved by Dylan-DPC

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jun 6, 2020
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bors commented Jun 6, 2020

⌛ Testing commit 450a1b6 with merge 6b28611f8c80778b4224a0ce9009442c570e20b2...

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bors commented Jun 6, 2020

💔 Test failed - checks-azure

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Jun 6, 2020
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8 participants