Function LLVMGetSwitchDefaultDest 

pub unsafe extern "C" fn LLVMGetSwitchDefaultDest(
    SwitchInstr: LLVMValueRef,
) -> LLVMBasicBlockRef

Obtain the default destination basic block of a switch instruction.

This only works on llvm::SwitchInst instructions.

@see llvm::SwitchInst::getDefaultDest()