BUGFIX: Fix indexed reductions with complex types in OpenCL backend
BUGFIX: Fix indexed reductions with complex types in OpenCL backend

bkloppenborg/arrayfire,munnybearz/arrayfire,arrayfire/arrayfire,marbre/arrayfire,arrayfire/arrayfire,marbre/arrayfire,umar456/arrayfire,marbre/arrayfire,victorv/arrayfire,ghisvail/arrayfire,hshindo/arrayfire,shehzan10/arrayfire,merlin-ext/arrayfire,merlin-ext/arrayfire,9prady9/arrayfire,bkloppenborg/arrayfire,umar456/arrayfire,pentschev/arrayfire,ghisvail/arrayfire,pombredanne/arrayfire,pentschev/arrayfire,shehzan10/arrayfire,ghisvail/arrayfire,bkloppenborg/arrayfire,9prady9/arrayfire,shehzan10/arrayfire,9prady9/arrayfire,hshindo/arrayfire,pentschev/arrayfire,marbre/arrayfire,merlin-ext/arrayfire,munnybearz/arrayfire,arrayfire/arrayfire,victorv/arrayfire,pentschev/arrayfire,arrayfire/arrayfire,hshindo/arrayfire,pombredanne/arrayfire,ghisvail/arrayfire,munnybearz/arrayfire,shehzan10/arrayfire,pombredanne/arrayfire,hshindo/arrayfire,pombredanne/arrayfire,victorv/arrayfire,merlin-ext/arrayfire,bkloppenborg/arrayfire,9prady9/arrayfire,umar456/arrayfire,victorv/arrayfire,umar456/arrayfire