eliminate AsmPrinter::SwitchToSection and just have clients
talk to the MCStreamer directly instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79405 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index cb36425..89bc5bc 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -97,6 +97,7 @@
 }
 
 void MCAsmStreamer::SwitchSection(const MCSection *Section) {
+  assert(Section && "Cannot switch to a null section!");
   if (Section != CurSection) {
     CurSection = Section;
     Section->PrintSwitchToSection(TAI, OS);