Remove the MCSymbolData typedef.

The getData member function is next.

llvm-svn: 238611
diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
index 67762c5..da5d94e 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
@@ -567,7 +567,7 @@
                                      Twine(MappingSymbolCounter++));
 
     getAssembler().registerSymbol(*Symbol);
-    MCSymbolData &SD = Symbol->getData();
+    MCSymbol &SD = Symbol->getData();
     MCELF::SetType(*Symbol, ELF::STT_NOTYPE);
     MCELF::SetBinding(*Symbol, ELF::STB_LOCAL);
     SD.setExternal(false);