Created an IndexValueStore class which can store any object and return
an integer index to its hash map.
Linear data is now stored in ve.dm.LinearData instances. Two subclasses
for element and meta data contain methods specific to those data types
(ElementLinearData and MetaLinearData).
The static methods in ve.dm.Document that inspected data at a given
offset are now instance methods of ve.dm.ElementLinearData.
AnnotationSets (which are no longer OrderedHashSets) have been moved
to /dm and also have to be instantiated with a pointer the store.
Bug: 46320
Change-Id: I249a5d48726093d1cb3e36351893f4bff85f52e2
The IndentationAction was created against a version of master which
didn't have the new Surface constructor signature. This commit resolves
that conflict.
Change-Id: Ifc17f95acfa6057963d503448405355831b1ff97
Wrapper paragraphs should only be unwrapped if they are the first
element in their parent - or if there is a block level element separating
them from the previous unwrapped paragraph.
Empty paragraphs should only be unwrapped if they are empty and the
last element in their parent.
Also in this commit is a simple test for IndentationAction.decrease().
Bug: 45590
Change-Id: I1f47d12db6d57d984fd4607f667a3b62c53f3dd6
