NFC, Avoid a warning in WasmObjectWriter

The warning was (introduced in r331220):

lib/MC/WasmObjectWriter.cpp:51:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@331251 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/MC/WasmObjectWriter.cpp b/lib/MC/WasmObjectWriter.cpp
index 26dea0a..fa26a28 100644 (file)
--- a/lib/MC/WasmObjectWriter.cpp
+++ b/lib/MC/WasmObjectWriter.cpp
@@ -47,6 +47,8 @@ static std::string toString(wasm::WasmSymbolType type) {
     return "WASM_SYMBOL_TYPE_DATA";
   case wasm::WASM_SYMBOL_TYPE_SECTION:
     return "WASM_SYMBOL_TYPE_SECTION";
+  default:
+    llvm_unreachable("unexpected kind");
   }
 }