MCLinker upstream commit c27f2593f4e3.

Change-Id: I41325b6622594ebecd0a494a8d6d298c1c474ac1
diff --git a/include/mcld/LD/SectionData.h b/include/mcld/LD/SectionData.h
index 316d92f..4f58afa 100644
--- a/include/mcld/LD/SectionData.h
+++ b/include/mcld/LD/SectionData.h
@@ -55,6 +55,8 @@
 
   static void Destroy(SectionData*& pSection);
 
+  static void Clear();
+
   const LDSection& getSection() const { return *m_pSection; }
   LDSection&       getSection()       { return *m_pSection; }