[WebAssembly] Distinguish debug/symbol names in the Wasm structs.  NFC

Differential Revision: https://reviews.llvm.org/D45021

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@330448 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed