Fix dynamically linked debug builds.

On the surface, this might not look like it does anything... but
actually it brings in the declaration "extern template class
AnalysisManager<Loop>;", which suppresses the instantiation of the
constructor, which avoids the funny interaction between "extern
template" and -fvisibility-inlines-hidden.

llvm-svn: 273133

llvm/lib/Analysis/LoopPass.cpp

@@ -14,6 +14,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Analysis/LoopPass.h"
+#include "llvm/Analysis/LoopPassManager.h"
 #include "llvm/IR/IRPrintingPasses.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/OptBisect.h"