Change the ARMConstantPoolValue modifier string to an enumeration. This will
help in MC'izing the references that use them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118633 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
index 30823d7..ed7dd8c 100644
--- a/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -647,7 +647,7 @@
   // FIXME: Model the whole expression an an MCExpr and we can get rid
   // of this hasRawTextSupport() clause and just do an EmitValue().
   if (OutStreamer.hasRawTextSupport()) {
-    if (ACPV->hasModifier()) OS << "(" << ACPV->getModifier() << ")";
+    if (ACPV->hasModifier()) OS << "(" << ACPV->getModifierText() << ")";
     if (ACPV->getPCAdjustment() != 0) {
       OS << "-(" << MAI->getPrivateGlobalPrefix() << "PC"
         << getFunctionNumber() << "_"  << ACPV->getLabelId()