[WebAssembly] Define a custom segment type for function definitions.

Since function definitions are not loaded into the address space, PT_LOAD is
inappropriate. PT_WEBASSEMBLY_FUNCTIONS is used to identify where the function
definitions are so that they can be processed at program startup time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257436 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed