Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112849 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp
index 5332ade..f7a2f20 100644
--- a/lib/MC/MCNullStreamer.cpp
+++ b/lib/MC/MCNullStreamer.cpp
@@ -26,6 +26,7 @@
     /// @{
 
     virtual void SwitchSection(const MCSection *Section) {
+      PrevSection = CurSection;
       CurSection = Section;
     }