Add a virtual dtor to the InlineAsm class so that the principle method of

the class can be defined in InlineAsm.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28718 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/InlineAsm.h

@@ -35,6 +35,7 @@ class InlineAsm : public Value {
   
   InlineAsm(const FunctionType *Ty, const std::string &AsmString,
             const std::string &Constraints, bool hasSideEffects);
+  ~InlineAsm();
 public:
 
   /// InlineAsm::get - Return the the specified uniqued inline asm string.