Tweak my interests (and Mark Shannon's :-) in CODEOWNERS (#112206)

.github/CODEOWNERS

@@ -28,14 +28,17 @@ Objects/type*                 @markshannon
 Objects/codeobject.c          @markshannon
 Objects/frameobject.c         @markshannon
 Objects/call.c                @markshannon
-Python/ceval.c                @markshannon
+Python/ceval*.[ch]            @markshannon @gvanrossum
 Python/compile.c              @markshannon @iritkatriel
 Python/assemble.c             @markshannon @iritkatriel
 Python/flowgraph.c            @markshannon @iritkatriel
 Python/ast_opt.c              @isidentical
+Python/bytecodes.c            @markshannon @gvanrossum
+Python/optimizer*.c           @markshannon @gvanrossum
 Lib/test/test_patma.py        @brandtbucher
 Lib/test/test_peepholer.py    @brandtbucher
 Lib/test/test_type_*.py       @JelleZijlstra
+Lib/test/test_capi/test_misc.py  @markshannon @gvanrossum
 
 # Exceptions
 Lib/traceback.py              @iritkatriel
@@ -102,6 +105,9 @@ Include/internal/pycore_time.h  @pganssle @abalkin
 /Lib/tokenize.py              @pablogsal @lysnikolaou
 /Lib/test/test_tokenize.py    @pablogsal @lysnikolaou
 
+# Code generator
+/Tools/cases_generator/        @gvanrossum
+
 # AST
 Python/ast.c                  @isidentical
 Parser/asdl.py                @isidentical
@@ -151,7 +157,7 @@ Doc/c-api/stable.rst          @encukou
 
 **/*idlelib*                  @terryjreedy
 
-**/*typing*                   @gvanrossum @JelleZijlstra @AlexWaygood
+**/*typing*                   @JelleZijlstra @AlexWaygood
 
 **/*ftplib                    @giampaolo
 **/*shutil                    @giampaolo