shader: Address feedback + clang format

src/shader_recompiler/CMakeLists.txt

@@ -197,6 +197,8 @@ else()
         $<$<CXX_COMPILER_ID:GNU>:-Werror=unused-but-set-variable>
         -Werror=unused-variable
 
+        # Bracket depth determines maximum size of a fold expression in Clang since 9c9974c3ccb6.
+        # And this in turns limits the size of a std::array.
         $<$<CXX_COMPILER_ID:Clang>:-fbracket-depth=1024>
     )
 endif()