Remove the getAddress getter, initialize Ordinal in the constructor and use
that on the ELF writer to detect a section we created.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120981 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAssembler.cpp b/lib/MC/MCAssembler.cpp
index c4e775e..ac0f31f 100644
--- a/lib/MC/MCAssembler.cpp
+++ b/lib/MC/MCAssembler.cpp
@@ -218,6 +218,7 @@
 
 MCSectionData::MCSectionData(const MCSection &_Section, MCAssembler *A)
   : Section(&_Section),
+    Ordinal(~UINT32_C(0)),
     Alignment(1),
     Address(~UINT64_C(0)),
     HasInstructions(false)