[lldb] Avoid build warnings when building for Windows. NFC.

[mstorsjo]

This avoids the following warnings from Clang:

../../lldb/source/Host/windows/Host.cpp:324:3: warning: default label in switch which covers all enumeration values [-Wcovered-switch-default]
  324 |   default:
      |   ^
../../lldb/source/Host/common/File.cpp:662:26: warning: cast from 'const void *' to 'char *' drops const qualifier [-Wcast-qual]
  662 |           .write((char *)buf, num_bytes);
      |                          ^

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Martin Storsjö (mstorsjo)

Changes

This avoids the following warnings from Clang:

../../lldb/source/Host/windows/Host.cpp:324:3: warning: default label in switch which covers all enumeration values [-Wcovered-switch-default]
  324 |   default:
      |   ^
../../lldb/source/Host/common/File.cpp:662:26: warning: cast from 'const void *' to 'char *' drops const qualifier [-Wcast-qual]
  662 |           .write((char *)buf, num_bytes);
      |                          ^

---

Full diff: https://github.com/llvm/llvm-project/pull/159345.diff

2 Files Affected:

• (modified) lldb/source/Host/common/File.cpp (+1-1)
• (modified) lldb/source/Host/windows/Host.cpp (-1)

diff --git a/lldb/source/Host/common/File.cpp b/lldb/source/Host/common/File.cpp
index 8fd1ca069dc01..1272f13c1d82d 100644
--- a/lldb/source/Host/common/File.cpp
+++ b/lldb/source/Host/common/File.cpp
@@ -659,7 +659,7 @@ Status NativeFile::Write(const void *buf, size_t &num_bytes) {
 #ifdef _WIN32
     if (is_windows_console) {
       llvm::raw_fd_ostream(_fileno(m_stream), false)
-          .write((char *)buf, num_bytes);
+          .write((const char *)buf, num_bytes);
       return error;
     }
 #endif
diff --git a/lldb/source/Host/windows/Host.cpp b/lldb/source/Host/windows/Host.cpp
index e8973a3fb937a..d5704eed10ecb 100644
--- a/lldb/source/Host/windows/Host.cpp
+++ b/lldb/source/Host/windows/Host.cpp
@@ -321,7 +321,6 @@ void Host::SystemLog(Severity severity, llvm::StringRef message) {
     stream << "[Error] ";
     break;
   case lldb::eSeverityInfo:
-  default:
     stream << "[Info] ";
     break;
   }

[DavidSpickett]

LGTM