[nfc] [lldb] Support moving support files instead of copy

Split from D100299.

Reviewed By: jankratochvil

Differential Revision: https://reviews.llvm.org/D107165

Author: EricSL

lldb/include/lldb/Symbol/CompileUnit.h

@@ -332,6 +332,7 @@ class CompileUnit : public std::enable_shared_from_this<CompileUnit>,
   void SetLineTable(LineTable *line_table);
 
   void SetSupportFiles(const FileSpecList &support_files);
+  void SetSupportFiles(FileSpecList &&support_files);
 
   void SetDebugMacros(const DebugMacrosSP &debug_macros);
 

lldb/source/Symbol/CompileUnit.cpp

@@ -181,6 +181,10 @@ void CompileUnit::SetSupportFiles(const FileSpecList &support_files) {
   m_support_files = support_files;
 }
 
+void CompileUnit::SetSupportFiles(FileSpecList &&support_files) {
+  m_support_files = std::move(support_files);
+}
+
 DebugMacros *CompileUnit::GetDebugMacros() {
   if (m_debug_macros_sp.get() == nullptr) {
     if (m_flags.IsClear(flagsParsedDebugMacros)) {