Revert name change from r132533.  Lower case naming was intended per style guidelines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132555 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 2ec10c0..6972a45 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -1205,7 +1205,7 @@
 static void WriteFunction(const Function &F, ValueEnumerator &VE,
                           BitstreamWriter &Stream) {
   Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 4);
-  VE.IncorporateFunction(F);
+  VE.incorporateFunction(F);
 
   SmallVector<unsigned, 64> Vals;
 
@@ -1269,7 +1269,7 @@
 
   if (NeedsMetadataAttachment)
     WriteMetadataAttachment(F, VE, Stream);
-  VE.PurgeFunction();
+  VE.purgeFunction();
   Stream.ExitBlock();
 }