Fix MCJIT memory leak of owned TargetMachine.

The JIT is expected to take ownership of the TM that's passed in. The MCJIT
wasn't freeing it, resulting in leaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148356 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index d5aaec9..a0280b7 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -85,6 +85,7 @@
 
 MCJIT::~MCJIT() {
   delete MemMgr;
+  delete TM;
 }
 
 void *MCJIT::getPointerToBasicBlock(BasicBlock *BB) {