Define functions in Base to treat `Node` as collection

[coveralls]

Pull Request Test Coverage Report for Build 4916235722

• 101 of 102 (99.02%) changed or added relevant lines in 4 files are covered.
• 8 unchanged lines in 5 files lost coverage.
• Overall coverage decreased (-0.6%) to 88.44%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/base.jl	81	82	98.78%
<!--	Total:	101	102	99.02%	-->

Files with Coverage Reduction	New Missed Lines	%
src/EvaluateEquation.jl	1	99.64%
src/Utils.jl	1	71.11%
src/InterfaceSymbolicUtils.jl	2	66.67%
src/precompile.jl	2	80.8%
src/SimplifyEquation.jl	2	86.42%
<!--	Total:	8		-->

Totals
Change from base Build 4903484182:	-0.6%
Covered Lines:	964
Relevant Lines:	1090

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💛 - Coveralls

[github-actions[bot]]

Benchmark Results

	master	5073e35fcba673...	t[master]/t[5073e35fcba673...]
eval/ComplexF32/evaluation	11.5 ± 0.8 ms	11.4 ± 0.69 ms	1.01
eval/ComplexF64/evaluation	14.6 ± 1.1 ms	14.1 ± 1 ms	1.04
eval/Float32/derivative	19.2 ± 1 ms	19.4 ± 0.97 ms	0.986
eval/Float32/derivative_turbo	21.1 ± 1.3 ms	21 ± 1.2 ms	1
eval/Float32/evaluation	3.81 ± 0.3 ms	3.92 ± 0.31 ms	0.971
eval/Float32/evaluation_turbo	0.908 ± 0.082 ms	0.904 ± 0.084 ms	1
eval/Float64/derivative	27.5 ± 4.5 ms	26.9 ± 3.8 ms	1.02
eval/Float64/derivative_turbo	30.6 ± 4.6 ms	29.7 ± 3.8 ms	1.03
eval/Float64/evaluation	4.79 ± 0.36 ms	4.77 ± 0.39 ms	1
eval/Float64/evaluation_turbo	1.42 ± 0.12 ms	1.45 ± 0.12 ms	0.978
time_to_load	15.2 ± 0.12 s	15.1 ± 0.055 s	1.01
utils/combine_operators/break_sharing	0.0738 ± 0.0055 ms	0.0729 ± 0.0072 ms	1.01
utils/convert/break_sharing	0.0575 ± 0.0077 ms	0.0581 ± 0.0083 ms	0.99
utils/convert/preserve_sharing	0.278 ± 0.013 ms	0.282 ± 0.014 ms	0.985
utils/copy/break_sharing	0.0547 ± 0.0057 ms	0.055 ± 0.0086 ms	0.995
utils/copy/preserve_sharing	0.276 ± 0.009 ms	0.277 ± 0.016 ms	0.996
utils/count_constants/break_sharing	0.0324 ± 0.0015 ms	0.0327 ± 0.0015 ms	0.991
utils/count_depth/break_sharing	0.033 ± 0.0012 ms	0.0329 ± 0.0032 ms	1
utils/count_nodes/break_sharing	30.1 ± 2.5 μs	30.9 ± 1.4 μs	0.974
utils/get_set_constants!/break_sharing	0.125 ± 0.0031 ms	0.124 ± 0.0051 ms	1.01
utils/has_constants/break_sharing	10.2 ± 0.9 μs	9.6 ± 0.93 μs	1.06
utils/has_operators/break_sharing	2.76 ± 0.12 μs	2.82 ± 0.18 μs	0.976
utils/index_constants/break_sharing	0.0964 ± 0.0078 ms	0.0981 ± 0.0063 ms	0.983
utils/is_constant/break_sharing	10.1 ± 1.1 μs	11.1 ± 1.1 μs	0.908
utils/simplify_tree/break_sharing	0.195 ± 0.021 ms	0.197 ± 0.024 ms	0.992

Benchmark Plots

A plot of the benchmark results have been uploaded as an artifact to the workflow run for this PR. Go to "Actions"->"Benchmark a pull request"->[the most recent run]->"Artifacts" (at the bottom).