Fix compilation error

llvm-svn: 314487
diff --git a/lldb/source/Symbol/ClangASTContext.cpp b/lldb/source/Symbol/ClangASTContext.cpp
index 00729c8..9da01b4 100644
--- a/lldb/source/Symbol/ClangASTContext.cpp
+++ b/lldb/source/Symbol/ClangASTContext.cpp
@@ -1431,7 +1431,7 @@
           is_typename, parameter_pack));
     }
   }
-  
+
   if (template_param_infos.packed_args &&
       template_param_infos.packed_args->args.size()) {
     IdentifierInfo *identifier_info = nullptr;
@@ -10126,7 +10126,7 @@
 
 clang::ExternalASTMerger &
 ClangASTContextForExpressions::GetMergerUnchecked() {
-  lldbassert(m_scratch_ast_source_ap);
+  lldbassert(m_scratch_ast_source_ap != nullptr);
   return m_scratch_ast_source_ap->GetMergerUnchecked();
 }