code: public void popTypeVariables (int count) {
  		int n = argumentsSize, i = n - count;
  		argumentsSize = i;
  		while (i < n)
  			arguments[i++] = null;
  	}
docs: Removes the number of entries that were pushed by {@link #pushTypeVariables(GenericsHierarchy, GenericType[])}.
  @param count Must be even.