cmake clang/compiler_flags.cmake: Re-enable -Wshift-overflow

This warning can be re-enabled without any changes (no warnings are
emitted).

Signed-off-by: Tom Hughes <[email protected]>

Author: thughes

cmake/compiler/clang/compiler_flags.cmake

@@ -102,7 +102,6 @@ check_set_compiler_property(APPEND PROPERTY warning_dw_3
 check_set_compiler_property(PROPERTY warning_extended
                             #FIXME: need to fix all of those
                             -Wno-sometimes-uninitialized
-                            -Wno-shift-overflow
                             -Wno-missing-braces
                             -Wno-self-assign
                             -Wno-address-of-packed-member