docs: private static boolean isMerge(InstructionHandle handle) {
          if (handle.hasTargeters()) {
              // Check all targeters of this handle to see if any
              // of them are branches. If so, the instruction is a merge.
              InstructionTargeter[] targeterList = handle.getTargeters();
              for (InstructionTargeter targeter : targeterList) {
                  if (targeter instanceof BranchInstruction) {
                      return true;
                  }
              }
          }
          return false;
      }