Better diagnostic for malformed .org assembly directive.

Provide source line number information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149101 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCPureStreamer.cpp b/lib/MC/MCPureStreamer.cpp
index 8a3bf87..a770c97 100644
--- a/lib/MC/MCPureStreamer.cpp
+++ b/lib/MC/MCPureStreamer.cpp
@@ -46,7 +46,7 @@
                                     unsigned MaxBytesToEmit = 0);
   virtual void EmitCodeAlignment(unsigned ByteAlignment,
                                  unsigned MaxBytesToEmit = 0);
-  virtual void EmitValueToOffset(const MCExpr *Offset,
+  virtual bool EmitValueToOffset(const MCExpr *Offset,
                                  unsigned char Value = 0);
   virtual void FinishImpl();
 
@@ -184,9 +184,10 @@
     getCurrentSectionData()->setAlignment(ByteAlignment);
 }
 
-void MCPureStreamer::EmitValueToOffset(const MCExpr *Offset,
+bool MCPureStreamer::EmitValueToOffset(const MCExpr *Offset,
                                        unsigned char Value) {
   new MCOrgFragment(*Offset, Value, getCurrentSectionData());
+  return false;
 }
 
 void MCPureStreamer::EmitInstToFragment(const MCInst &Inst) {