Add back the MC bits of 126425. Original patch by Nathan Jeffords. I added the
asm parsing and testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146801 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 60a0a9d..74c3e39 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -558,6 +558,10 @@
   EmitLabel(CurFrame->PrologEnd);
 }
 
+void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+  assert(0 && "This file format doesn't support this directive");
+}
+
 void MCStreamer::EmitFnStart() {
   errs() << "Not implemented yet\n";
   abort();