* Add new class to identify what a (large) operator is
* Add some IDE hints about what methods exist in texutil
* Add tests for operators in display and block style
Bug: T375907
Change-Id: If734f194cd8fa30efaf6d8c8d89f85e3e1c96276
To reduce the complexity of the parse tree we remove the curly
element which is used for grouping in TeX. Instead, we use
use an attribute which defines if the group is put into curly
brackets or not. The functionality of the curly element
is transferred to the TexArray which was the only possible
child of the curly element before. To ease the transition,
we add a special constructor to TexArray.
We could not measure any performance implications of this change.
Bug: T333973
Change-Id: Idcb58694022831113bdc437576bb9f48658fff2f