rust/compiler/rustc_typeck
bors e82b65026d Auto merge of #85538 - r00ster91:iterrepeat, r=Mark-Simulacrum
Replace some `std::iter::repeat` with `str::repeat`

I noticed that there were some instances where `std::iter::repeat` would be used to repeat a string or a char to take a specific count of it and then collect it into a `String` when `str::repeat` is actually much faster and better for that.

See also: https://github.com/rust-lang/rust-clippy/issues/7260.
2021-06-20 20:07:13 +00:00
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For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.