Defer call to InitSections until after MCContext has been initialized. If
InitSections is called before the MCContext is initialized it could cause
duplicate temporary symbols to be emitted later (after context initialization
resets the temporary label counter).

llvm-svn: 169785
diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index 77e3d4c..96d6d69 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -23,7 +23,8 @@
 
 MCStreamer::MCStreamer(MCContext &Ctx)
   : Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
-    CurrentW64UnwindInfo(0), LastSymbol(0) {
+    CurrentW64UnwindInfo(0), LastSymbol(0),
+    AutoInitSections(false) {
   const MCSection *section = NULL;
   SectionStack.push_back(std::make_pair(section, section));
 }