Move ARMJITInfo off of the TargetMachine and down onto the subtarget.

This required untangling a mess of headers that included around.

This a recommit of r210953 with a fix for the removed accessor
for JITInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211233 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMSubtarget.cpp

@@ -148,7 +148,7 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &CPU,
       ARMProcClass(None), stackAlignment(4), CPUString(CPU), IsLittle(IsLittle),
       TargetTriple(TT), Options(Options), TargetABI(ARM_ABI_UNKNOWN),
       DL(computeDataLayout(initializeSubtargetDependencies(CPU, FS))),
-      TSInfo(DL) {}
+      TSInfo(DL), JITInfo() {}
 
 void ARMSubtarget::initializeEnvironment() {
   HasV4TOps = false;