ValueMapper: Fix delayed blockaddress handling after r265273

r265273 added Mapper::mapBlockAddress, which delays mapping a
blockaddress value until the function has a body.  The condition was
backwards, and should be checking Function::empty instead of
GlobalValue::isDeclaration.

llvm-svn: 265508
GitOrigin-RevId: 6f2e37429af186069cb93a30b436cb567293f047
2 files changed