This commit moves the code responsible for adding newlines and tracking
indent, so that it can be used not only for operation printers, but also
for attribute and type printers.
It could be useful for nested attributes, where proper formatting with
newlines and indents would benefit the readability of the IR. Currently,
everything is printed on one line, which makes it difficult to read if
the attribute is more verbose and there are multiple levels of nesting.
Co-authored-by: Andruszkiewicz, Jacenty <andruszkiewicz.jacenty@intel.com>
b5614ce13f