All C++ preprocessor macros start now with RR_ (instead of a mix of R…

…R_ and RERUN_) (#4371)

### What

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CODE_STYLE.md

@@ -204,6 +204,8 @@ To accommodate for this and other languages, strings on the C interface are almo
 ### Misc
 We don't add `inline` before class/struct member functions if they are inlined in the class/struct definition.
 
+Preprocessor directives/macros are usually prefixed with `RR_`
+
 Include what you use: if you use `std::vector`, then include `<vector>` - don't depend on a transitive include.
 
 

crates/re_types_builder/src/codegen/cpp/mod.rs

@@ -442,7 +442,7 @@ impl QuotedObject {
                     #field_ident = std::move(#parameter_ident);
                     #NEWLINE_TOKEN
                     #gcc_ignore_comment
-                    RERUN_WITH_MAYBE_UNINITIALIZED_DISABLED(return std::move(*this);)
+                    RR_WITH_MAYBE_UNINITIALIZED_DISABLED(return std::move(*this);)
                 },
                 inline: true,
             });