[SYCL][libclc] Support BinaryFPType in Remangler tool

This patch fixes build on CUDA after LLORG changes.

Author: steffenlarsen

libclc/utils/libclc-remangler/LibclcRemangler.cpp

@@ -367,6 +367,20 @@ class Remangler {
       addSub(typeNode);
       break;
     }
+    case Node::Kind::KBinaryFPType: {
+      if (remangleSub(typeNode, S))
+        return;
+
+      const BinaryFPType *BFPType = static_cast<const BinaryFPType *>(typeNode);
+      assert(BFPType->getDimension()->getKind() == Node::Kind::KNameType);
+      const NameType *dims =
+          static_cast<const NameType *>(BFPType->getDimension());
+
+      S << "DF";
+      S << dims->getName();
+      S << '_';
+      break;
+    }
     case Node::Kind::KVendorExtQualType: {
       if (remangleSub(typeNode, S))
         return;

llvm/include/llvm/Demangle/ItaniumDemangle.h

@@ -1104,6 +1104,8 @@ class BinaryFPType final : public Node {
 
   template<typename Fn> void match(Fn F) const { F(Dimension); }
 
+  const Node *getDimension() const { return Dimension; }
+
   void printLeft(OutputStream &S) const override {
     S += "_Float";
     Dimension->print(S);