Fix the Win32 VS2008 build:

- Make type declarations match the struct/class keyword of the definition.
 - Move AddSignalHandler into the namespace where it belongs.
 - Correctly call functions from template base.
 - Some other small changes.
With this patch, LLVM and Clang should build properly and with far less noise under VS2008.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67347 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/LiveIntervalAnalysis.cpp

@@ -2042,7 +2042,7 @@ addIntervalsForSpills(const LiveInterval &li,
         if (CanFold && !Ops.empty()) {
           if (tryFoldMemoryOperand(MI, vrm, NULL, index, Ops, true, Slot,VReg)){
             Folded = true;
-            if (FoundUse > 0) {
+            if (FoundUse) {
               // Also folded uses, do not issue a load.
               eraseRestoreInfo(Id, index, VReg, RestoreMBBs, RestoreIdxes);
               nI.removeRange(getLoadIndex(index), getUseIndex(index)+1);