remove extra watch row column cases - simplify most cases down to expr / eval. use extra 'note' for watch window cells to annotate type info - this sacrifices the full type evaluation cell, and instead uses a small extra bit of text to denote the type for quick reading. but this full type cell is not needed in most cases, and it can always be reobtained with an explicit typeof evaluation.

src/raddbg/raddbg_widgets.h

@@ -51,6 +51,8 @@ struct RD_CellParams
   String8 pre_edit_value;
   DR_FStrList meta_fstrs;
   DR_FStrList value_fstrs;
+  DR_FStrList note_fstrs;
+  UI_Size note_width;
   String8 search_needle;
   String8 description;