The DSLVar class hierarchy had many constructor variations to support
the idea of creating DSL variables without explicitly assigning a name
to them. Instead, name-mangling would automatically assign them a name
like `_123_var`. This was designed to make it easlier to write a
complete shader in DSL.
We no longer have DSL name-mangling, or intend to create complete
programs in pure DSL. In the absence of name-mangling, these
constructors aren't useful (every variable would be named `var`).
They have been removed.
Change-Id: If533e479cc04c5a6ced9a7e880dcc56063f29374
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542138
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
a6178be7d1