Fix compiler error in Attributes.cpp
```
Compiling Attributes.cpp ...
../../../Attributes.cpp: In member function 'std::__1::pair<unsigned int, llvm::Optional<unsigned int> > llvm::AttributeSet::getAllocSizeArgs() const':
../../../Attributes.cpp:542:69: error: operands to ?: have different types 'std::__1::pair<unsigned int, llvm::Optional<unsigned int> >' and 'std::__1::pair<int, int>'
return SetNode ? SetNode->getAllocSizeArgs() : std::make_pair(0, 0);
^
../../../Attributes.cpp:543:1: error: control reaches end of non-void function [-Werror=return-type]
}
^
```
Differential Revision: https://reviews.llvm.org/D31981
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300143 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed