GitLab

- Switched back to using com.android.calculator2 package name.
- Setup to replace Calculator package.
- Replaced launcher icon with fishfood variant.

Change-Id: Ie3a74249e4d1808c50bfd86a3030e0ae61165c67

Add back some basic test infrastructure from the KitKat calculator,
updated to make it work with the current code base and asynchronous
expression evaluation.

Add BoundedRational tests, designed to check that we get all the
corner cases, particularly for degree-based trig functions, right.

Fix a couple of BoundedRational typos that caused these tests to fail.

Change-Id: I81d8f3d9bde6aa6c20f9958eabd62979babeff5b

Replace the arity library with a new evaluation engine based on
an open source "constructive reals" library.  This provides answers
that are correct to the last displayed digit, and can be scrolled to
get more precision, with evaluation to additional precision
proceeding on demand.

This uses pieces of an old prototype calculator with a
pre-Material-Design UI.  Since the code structure of the KitKat and
Lollipop calculators is quite different, this merge required major
changes to make the pieces fit again.  An egregious bug in the
prototype related to the evaluation of the power operator was
fixed.  Many new UI bugs are introduced to compensate :-)

Add separate buttons for inverse trig functions.

Add long TODO lists for various missing pieces.

This is really designed to get something up and running
that looks like it has a Material Design UI.

This version kind of works, though with many UI deficiencies.

This addresses external issues 63368, 81089, and 80990.  It
partially address the degree vs radian (80330) issue as well,
though we're still missing the UI for that.

This fixes

Bug:15284587

(More work is needed to make this interact correctly with keyboard support.)

Degree/Radian mode is also internal

Bug:17059768

This provides much more robust solutions to the following, which were
previously fixed by favoring round numbers over precise solutions:

Bug:15747298
Bug:15332726

Change-Id: Ib64ffcee9760a3195ae2a48302308eeb09a156bd

Change-Id: I0b19d8ea1c702e929c00a75b44a0bfefa75cd54a

Previously: 7x9 would be read as "7EX9" when you really want
"7 multiplied by 9"

Change-Id: I6fd3c1e3d0a40ca8700c10227edbdb445dbb7743

Change-Id: Icb6b136e72cfac98119b639259818f5363be7176

Bug 2464487.

Bug 2399991, 1793578.