Rollup merge of #120840 - HTGAzureX1212:HTGAzureX1212/unicode-identifier-types, r=fmease,Manishearth

Split Diagnostics for Uncommon Codepoints: Add Individual Identifier Types

This pull request further modifies the `uncommon_codepoints` lint, adding the individual identifier types of `Technical`, `Not_NFKC`, `Exclusion` and `Limited_Use` to the diagnostic message.

Example rendered diagnostic:
```
error: identifier contains a Unicode codepoint that is not used in normalized strings: 'ij'
  --> $DIR/lint-uncommon-codepoints.rs:6:4
   |
LL | fn dijkstra() {}
   |    ^^^^^^^
   = note: this character is included in the Not_NFKC Unicode general security profile
```

Second step of #120228.

compiler/rustc_lint/src/lib.rs

@@ -31,6 +31,7 @@
 #![feature(array_windows)]
 #![feature(box_patterns)]
 #![feature(control_flow_enum)]
+#![feature(extract_if)]
 #![feature(generic_nonzero)]
 #![feature(if_let_guard)]
 #![feature(iter_order_by)]