Allow parsing MetaNameValue if the path part contains a keyword
#1413
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This allows this to be parsed:
```rust
let attr: syn::MetaNameValue = syn::parse_quote!{
as = "FooBar"
};
```
This aligns the code with `parse_meta_path` which already uses
`input.peek(Ident::peek_any)`.
https://github.com/dtolnay/syn/blob/25def51081b68538547f34a3494744a807be4203/src/meta.rs#L401
This allows parsing the `#[serde_as(as = "FooBar")]` attributes which
are used as part of the `serde_with` crate.
Thanks to @matthias-stemmler for finding the cause.
#1408 (comment)
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This allows this to be parsed:
This aligns the code with
parse_meta_pathwhich already usesinput.peek(Ident::peek_any).syn/src/meta.rs
Line 401 in 25def51
This allows parsing the
#[serde_as(as = "FooBar")]attributes whichare used as part of the
serde_withcrate.Thanks to @matthias-stemmler for finding the cause.
#1408 (comment)