Fixed the build broken by the r215046.

llvm-svn: 215107
diff --git a/lldb/source/Expression/ClangExpressionParser.cpp b/lldb/source/Expression/ClangExpressionParser.cpp
index 05a45bc..58af442 100644
--- a/lldb/source/Expression/ClangExpressionParser.cpp
+++ b/lldb/source/Expression/ClangExpressionParser.cpp
@@ -230,9 +230,9 @@
         m_compiler->getCodeGenOpts().setDebugInfo(CodeGenOptions::NoDebugInfo);
 
     // Disable some warnings.
-    m_compiler->getDiagnostics().setSeverityForGroup(
+    m_compiler->getDiagnostics().setSeverityForGroup(clang::diag::Flavor::WarningOrError,
         "unused-value", clang::diag::Severity::Ignored, SourceLocation());
-    m_compiler->getDiagnostics().setSeverityForGroup(
+    m_compiler->getDiagnostics().setSeverityForGroup(clang::diag::Flavor::WarningOrError,
         "odr", clang::diag::Severity::Ignored, SourceLocation());
 
     // Inform the target of the language options