CLN: move pandas.indexes -> pandas.core.indexes

[jreback]

xref #13634

[codecov]

Codecov Report

Merging #16031 into master will decrease coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master   #16031      +/-   ##
==========================================
- Coverage   90.99%   90.99%   -0.01%     
==========================================
  Files         153      153              
  Lines       50469    50469              
==========================================
- Hits        45926    45925       -1     
- Misses       4543     4544       +1

Flag	Coverage Δ
#multiple	88.76% <100%> (-0.01%)	⬇️
#single	40.43% <96.96%> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/compat/pickle_compat.py	69.51% <ø> (ø)	⬆️
pandas/core/indexes/frozen.py	91.17% <ø> (ø)
pandas/tseries/period.py	92.74% <100%> (ø)	⬆️
pandas/core/sparse/array.py	91.46% <100%> (ø)	⬆️
pandas/core/indexes/category.py	98.43% <100%> (ø)
pandas/tseries/base.py	96.67% <100%> (ø)	⬆️
pandas/tseries/tdi.py	90.37% <100%> (ø)	⬆️
pandas/tseries/index.py	95.43% <100%> (ø)	⬆️
pandas/core/index.py	100% <100%> (ø)	⬆️
pandas/core/indexes/multi.py	96.7% <100%> (ø)
... and 9 more

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #16031 into master will decrease coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master   #16031      +/-   ##
==========================================
- Coverage      91%   90.99%   -0.01%     
==========================================
  Files         153      153              
  Lines       50469    50469              
==========================================
- Hits        45927    45925       -2     
- Misses       4542     4544       +2

Flag	Coverage Δ
#multiple	88.76% <100%> (-0.01%)	⬇️
#single	40.43% <96.96%> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/core/indexes/frozen.py	91.17% <ø> (ø)
pandas/compat/pickle_compat.py	69.51% <ø> (ø)	⬆️
pandas/core/indexes/range.py	92.11% <100%> (ø)
pandas/tseries/tdi.py	90.37% <100%> (ø)	⬆️
pandas/core/indexes/category.py	98.43% <100%> (ø)
pandas/tseries/period.py	92.74% <100%> (ø)	⬆️
pandas/core/indexes/multi.py	96.7% <100%> (ø)
pandas/core/indexes/numeric.py	97.1% <100%> (ø)
pandas/core/categorical.py	95.85% <100%> (ø)	⬆️
pandas/core/indexes/api.py	98.68% <100%> (ø)
... and 8 more

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 89bd268...3259aa2. Read the comment docs.