Document a couple functions.

llvm-svn: 13761
diff --git a/llvm/lib/VMCore/AsmWriter.cpp b/llvm/lib/VMCore/AsmWriter.cpp
index bb30570..698e725 100644
--- a/llvm/lib/VMCore/AsmWriter.cpp
+++ b/llvm/lib/VMCore/AsmWriter.cpp
@@ -1015,7 +1015,12 @@
   o << getType() << " " << getName();
 }
 
+// Value::dump - allow easy printing of  Values from the debugger.
+// Located here because so much of the needed functionality is here.
 void Value::dump() const { print(std::cerr); }
+
+// Type::dump - allow easy printing of  Values from the debugger.
+// Located here because so much of the needed functionality is here.
 void Type::dump() const { print(std::cerr); }
 
 //===----------------------------------------------------------------------===//