Changes to the V2 bytecode format:

- Null values are implicitly encoded instead of explicitly, this makes
    things more compact!
  - More compactly represent ConstantPointerRefs
  - Bytecode files are represented as:
      Header|GlobalTypes|GlobalVars/Function Protos|Constants|Functions|SymTab
    instead of
      Header|GlobalTypes|Constants|GlobalVars/Function Protos|Functions|SymTab
    which makes a lot of things simpler.

Writer changes:
  - We now explictly encode versioning information in the bytecode files.
  - This allows new code to read bytecode files produced by old code, but
    new bytecode files can have enhancements such as the above.  Although this
    makes the reader a bit more complex (having to deal with old formats), the
    writer only needs to be able to produce the most recent version.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5749 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Bytecode/Writer/WriterInternals.h

@@ -25,8 +25,8 @@ public:
   BytecodeWriter(std::deque<unsigned char> &o, const Module *M);
 
 protected:
-  void outputConstants(bool isMethod);
-  void processMethod(const Function *F);
+  void outputConstants(bool isFunction);
+  void outputFunction(const Function *F);
   void processBasicBlock(const BasicBlock &BB);
   void processInstruction(const Instruction &I);