Reinstate "Nuke the old JIT."
Approved by Jim Grosbach, Lang Hames, Rafael Espindola.

This reinstates commits r215111, 215115, 215116, 215117, 215136.

llvm-svn: 216982
diff --git a/llvm/test/ExecutionEngine/MCJIT/hello.ll b/llvm/test/ExecutionEngine/MCJIT/hello.ll
index b744707..47e36a5 100644
--- a/llvm/test/ExecutionEngine/MCJIT/hello.ll
+++ b/llvm/test/ExecutionEngine/MCJIT/hello.ll
@@ -1,4 +1,4 @@
-; RUN: %lli_mcjit %s > /dev/null
+; RUN: %lli %s > /dev/null
 
 @.LC0 = internal global [12 x i8] c"Hello World\00"		; <[12 x i8]*> [#uses=1]