Fix typo s/beloinging/belonging

llvm/lib/Transforms/Utils/LCSSA.cpp

while (!BBWorklist.empty()) {
     // Check if this is a loop header. If this is the case, we're done.
     if (L.getHeader() == BB)
       continue;
 
     // Otherwise, add its immediate predecessor in the dominator tree to the
     // worklist, unless we visited it already.
     BasicBlock *IDomBB = DT.getNode(BB)->getIDom()->getBlock();
 
-    // Exit blocks can have an immediate dominator not beloinging to the
+    // Exit blocks can have an immediate dominator not belonging to the
     // loop. For an exit block to be immediately dominated by another block
     // outside the loop, it implies not all paths from that dominator, to the
     // exit block, go through the loop.
     // Example:
     //
     // |---- A
     // |     |
     // |     B<--