error: interning a string literal
  --> tests/ui-internal/interning_literals.rs:10:13
   |
LL |     let _ = Symbol::intern("f32");
   |             ^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add the symbol to `clippy_utils/src/sym.rs` if needed
   = note: `-D clippy::interning-literals` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::interning_literals)]`
help: use a preinterned symbol instead
   |
LL -     let _ = Symbol::intern("f32");
LL +     let _ = sym::f32;
   |

error: interning a string literal
  --> tests/ui-internal/interning_literals.rs:14:13
   |
LL |     let _ = Symbol::intern("proc-macro");
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add the symbol to `clippy_utils/src/sym.rs` if needed
help: use a preinterned symbol instead
   |
LL -     let _ = Symbol::intern("proc-macro");
LL +     let _ = sym::proc_dash_macro;
   |

error: interning a string literal
  --> tests/ui-internal/interning_literals.rs:18:13
   |
LL |     let _ = Symbol::intern("self");
   |             ^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add the symbol to `clippy_utils/src/sym.rs` if needed
help: use a preinterned symbol instead
   |
LL -     let _ = Symbol::intern("self");
LL +     let _ = kw::SelfLower;
   |

error: interning a string literal
  --> tests/ui-internal/interning_literals.rs:22:13
   |
LL |     let _ = Symbol::intern("msrv");
   |             ^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add the symbol to `clippy_utils/src/sym.rs` if needed
help: use a preinterned symbol instead
   |
LL -     let _ = Symbol::intern("msrv");
LL +     let _ = sym::msrv;
   |

error: interning a string literal
  --> tests/ui-internal/interning_literals.rs:24:13
   |
LL |     let _ = Symbol::intern("Cargo.toml");
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add the symbol to `clippy_utils/src/sym.rs` if needed
help: use a preinterned symbol instead
   |
LL -     let _ = Symbol::intern("Cargo.toml");
LL +     let _ = sym::Cargo_toml;
   |

error: aborting due to 5 previous errors