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/lints.rs

@@ -1129,9 +1129,11 @@ pub struct IdentifierNonAsciiChar;
 
 #[derive(LintDiagnostic)]
 #[diag(lint_identifier_uncommon_codepoints)]
+#[note]
 pub struct IdentifierUncommonCodepoints {
     pub codepoints: Vec<char>,
     pub codepoints_len: usize,
+    pub identifier_type: &'static str,
 }
 
 #[derive(LintDiagnostic)]