Merge bitcoin/bitcoin#27465: doc: fix typo in developer-notes.md

doc/developer-notes.md

@@ -112,6 +112,10 @@ code.
   - Align pointers and references to the left i.e. use `type& var` and not `type &var`.
   - Prefer [`list initialization ({})`](https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#Res-list) where possible.
     For example `int x{0};` instead of `int x = 0;` or `int x(0);`
+  - Use a named cast or functional cast, not a C-Style cast. When casting
+    between integer types, use functional casts such as `int(x)` or `int{x}`
+    instead of `(int) x`. When casting between more complex types, use `static_cast`.
+    Use `reinterpret_cast` and `const_cast` as appropriate.
 
 For function calls a namespace should be specified explicitly, unless such functions have been declared within it.
 Otherwise, [argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl), also known as ADL, could be