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/PowerPC/AsmParser/PPCAsmParser.cpp b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
index 8fa4de3..3aeb6f6 100644
--- a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
+++ b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
@@ -1861,7 +1861,7 @@
     Error(L, "expected identifier in directive");
     return false;
   }
-  MCSymbol *Sym = getContext().GetOrCreateSymbol(Name);
+  MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
 
   if (getLexer().isNot(AsmToken::Comma)) {
     Error(L, "unexpected token in directive");