Based on this discussion: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20120305/138477.html

1. Declare a virtual function getPointerToNamedFunction() in JITMemoryManager
2. Move the implementation of getPointerToNamedFunction() form JIT/MCJIT to DefaultJITMemoryManager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153205 91177308-0d34-0410-b5e6-96231b3b80d8

unittests/ExecutionEngine/JIT/JITTest.cpp

@@ -64,6 +64,10 @@ public:
     : Base(JITMemoryManager::CreateDefaultMemManager()) {
     stubsAllocated = 0;
   }
+  virtual void *getPointerToNamedFunction(const std::string &Name,
+                                          bool AbortOnFailure = true) {
+    return Base->getPointerToNamedFunction(Name, AbortOnFailure);
+  }
 
   virtual void setMemoryWritable() { Base->setMemoryWritable(); }
   virtual void setMemoryExecutable() { Base->setMemoryExecutable(); }