Suggest character encoding is incorrect when encountering random null bytes #81856
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Suggest character encoding is incorrect when encountering random null bytes This adds a note whenever null bytes are seen at the start of a token unexpectedly, since those tend to come from UTF-16 encoded files without a [BOM](https://en.wikipedia.org/wiki/Byte_order_mark) (if a UTF-16 BOM appears it won't be valid UTF-8, but if there is no BOM it be both valid UTF-16 and valid but garbled UTF-8). This approach was suggested in rust-lang#73979 (comment). Closes rust-lang#73979.
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Rollup of 11 pull requests Successful merges: - rust-lang#81856 (Suggest character encoding is incorrect when encountering random null bytes) - rust-lang#82395 (Add missing "see its documentation for more" stdio) - rust-lang#82401 (Remove a redundant macro) - rust-lang#82498 (Use log level to control partitioning debug output) - rust-lang#82534 (Link crtbegin/crtend on musl to terminate .eh_frame) - rust-lang#82537 (Update measureme dependency to the latest version) - rust-lang#82561 (doc: cube root, not cubic root) - rust-lang#82563 (Fix intra-doc handling of `Self` in enum) - rust-lang#82584 (Add ARIA role to sidebar toggle in Rustdoc) - rust-lang#82596 (clarify RW lock's priority gotcha) - rust-lang#82607 (Add a getter for Frame.loc) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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This adds a note whenever null bytes are seen at the start of a token unexpectedly, since those tend to come from UTF-16 encoded files without a BOM (if a UTF-16 BOM appears it won't be valid UTF-8, but if there is no BOM it be both valid UTF-16 and valid but garbled UTF-8). This approach was suggested in #73979 (comment).
Closes #73979.