[lldb] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated.  The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

1 files changed, 4 insertions, 4 deletions

diff --git a/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp b/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp
index 905e9637493b..a8f47ffedd40 100644
--- a/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp
+++ b/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp
@@ -57,18 +57,18 @@ GetWasmString(llvm::DataExtractor &data, llvm::DataExtractor::Cursor &c) {
   uint64_t len = data.getULEB128(c);
   if (!c) {
     consumeError(c.takeError());
-    return llvm::None;
+    return std::nullopt;
   }
 
   if (len >= (uint64_t(1) << 32)) {
-    return llvm::None;
+    return std::nullopt;
   }
 
   llvm::SmallVector<uint8_t, 32> str_storage;
   data.getU8(c, str_storage, len);
   if (!c) {
     consumeError(c.takeError());
-    return llvm::None;
+    return std::nullopt;
   }
 
   llvm::StringRef str = toStringRef(makeArrayRef(str_storage));
@@ -427,7 +427,7 @@ llvm::Optional<FileSpec> ObjectFileWasm::GetExternalDebugInfoFileSpec() {
         return FileSpec(symbols_url->GetStringRef());
     }
   }
-  return llvm::None;
+  return std::nullopt;
 }
 
 void ObjectFileWasm::Dump(Stream *s) {