Use HAS_TARGET in the codegen_addop_j function

[nybblista]

I think we should assert with HAS_TARGET in the definition of the codegen_addop_j function rather than using OPCODE_HAS_JUMP and IS_BLOCK_PUSH_OPCODE directly in the function itself.

Linked PRs

• gh-133279: Assert with HAS_TARGET in the codegen_addop_j function #133280

[nybblista]

@iritkatriel @markshannon