Put the functionality for printing a value to a raw_ostream as an

operand into the Value interface just like the core print method is.
That gives a more conistent organization to the IR printing interfaces
-- they are all attached to the IR objects themselves. Also, update all
the users.

This removes the 'Writer.h' header which contained only a single function
declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198836 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/IR/Value.h

@@ -36,6 +36,7 @@ class InlineAsm;
 class Instruction;
 class LLVMContext;
 class MDNode;
+class Module;
 class StringRef;
 class Twine;
 class Type;
@@ -106,6 +107,13 @@ public:
   ///
   void print(raw_ostream &O, AssemblyAnnotationWriter *AAW = 0) const;
 
+  /// \brief Print the name of this Value out to the specified raw_ostream.
+  /// This is useful when you just want to print 'int %reg126', not the
+  /// instruction that generated it. If you specify a Module for context, then
+  /// even constanst get pretty-printed; for example, the type of a null
+  /// pointer is printed symbolically.
+  void printAsOperand(raw_ostream &O, bool PrintType = true, const Module *M = 0) const;
+
   /// All values are typed, get the type of this value.
   ///
   Type *getType() const { return VTy; }