alloc_size attribute: there's nothing wrong with alloc_size(1,1). It just...

alloc_size attribute: there's nothing wrong with alloc_size(1,1). It just means the function allocates x^2 bytes. GCC also accepts this syntax

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158662 91177308-0d34-0410-b5e6-96231b3b80d8