[clang-tools-extra] [clang-tidy] Add C++ member function support to custom bugprone-unsafe-functions matches (PR #117165)

[via cfe-commits]

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@@ -43,7 +43,10 @@ class UnsafeFunctionsCheck : public ClangTidyCheck {
 private:
   const std::vector<CheckedFunction> CustomFunctions;
 
-  // If true, the default set of functions are reported.
+  /// If true, the fully qualified name of custom functions will be shown in a
+  /// note tag.
+  const bool ShowFullyQualifiedNames;
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Discookie wrote:

Sometimes it is pretty difficult to discern the precise patteren in the first place. eg. above when matching .open(), aliases are not followed (ifstream =/= basic_ifstream<char>), and there's also a template parameter on the class name, but not on the function.

These are existing behaviors, and I haven't found a way to strip template data off of the classname yet.
I'll add some examples for template arguments to the docs.

https://github.com/llvm/llvm-project/pull/117165