Fix for armel double passed as long

Author: CarolEidt

src/jit/lsra.cpp

@@ -3998,7 +3998,7 @@ void LinearScan::buildRefPositionsForNode(GenTree*                  tree,
             {
                 // This is the 2nd or subsequent register defined by a multi-reg node.
                 // Connect them using 'relatedInterval'.
-                noway_assert((prevInterval != nullptr) && (prevInterval->relatedInterval == nullptr));
+                noway_assert(prevInterval != nullptr);
                 prevInterval->relatedInterval = interval;
                 prevInterval                  = interval;
                 prevInterval->isMultiReg      = true;

src/jit/lsraarm.cpp

@@ -767,7 +767,6 @@ void LinearScan::TreeNodeInfoInit(GenTree* tree, TreeNodeInfo* info)
             info->srcCount = 1;
             assert(info->dstCount == 1);
             LocationInfoListNode* locationInfo = getLocationInfo(tree->gtOp.gtOp1);
-            locationInfo->info.isTgtPref       = true;
             useList.Append(locationInfo);
             regNumber argReg  = tree->gtRegNum;
             regMaskTP argMask = genRegMask(argReg);

src/jit/lsraarmarch.cpp

@@ -555,9 +555,12 @@ void LinearScan::TreeNodeInfoInitCall(GenTreeCall* call, TreeNodeInfo* info)
 #ifdef _TARGET_ARM_
             // The `double` types have been transformed to `long` on armel,
             // while the actual long types have been decomposed.
+            // On ARM we may have bitcasts from DOUBLE to LONG.
             if (argNode->TypeGet() == TYP_LONG)
             {
-                info->srcCount += appendBinaryLocationInfoToList(argNode->AsOp());
+                assert(argNode->IsMultiRegNode());
+                info->srcCount += 2;
+                appendLocationInfoToList(argNode);
             }
             else
 #endif // _TARGET_ARM_