MC: Clean up method names in MCContext.

The naming was a mish-mash of old and new style. Update to be consistent
with the new. NFC.

llvm-svn: 237594
diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index d9287f7..289959b 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -692,7 +692,7 @@
 
   StringRef SymName("_gp_disp");
   MCAssembler &MCA = getStreamer().getAssembler();
-  MCSymbol *GP_Disp = MCA.getContext().GetOrCreateSymbol(SymName);
+  MCSymbol *GP_Disp = MCA.getContext().getOrCreateSymbol(SymName);
   MCA.getOrCreateSymbolData(*GP_Disp);
 
   MCInst TmpInst;