feat: get parse_expressions to work with aliases

[MilesCranmer]

@jyothis-fp this should fix the issue you encountered that prevented passing guesses with normal operators, such as "x ^ 2" => "safe_pow(x, 2)".

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.67%. Comparing base (2c8d3ca) to head (9e129d2).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #139   +/-   ##
=======================================
  Coverage   96.66%   96.67%           
=======================================
  Files          30       30           
  Lines        2612     2614    +2     
=======================================
+ Hits         2525     2527    +2     
  Misses         87       87           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[github-actions]

Benchmark Results (Julia v1)

Time benchmarks

	master	b2e17c6...	master / b2e17c6...
eval/ComplexF32/evaluation	7.26 ± 0.54 ms	7.23 ± 0.55 ms	1 ± 0.11
eval/ComplexF64/evaluation	10.7 ± 0.79 ms	10.8 ± 0.85 ms	0.997 ± 0.11
eval/Float32/derivative	11.7 ± 0.59 ms	11.6 ± 0.68 ms	1.01 ± 0.078
eval/Float32/derivative_turbo	11.8 ± 0.74 ms	11.6 ± 0.72 ms	1.01 ± 0.09
eval/Float32/evaluation	2.79 ± 0.29 ms	2.73 ± 0.26 ms	1.02 ± 0.14
eval/Float32/evaluation_bumper	0.613 ± 0.018 ms	0.613 ± 0.019 ms	1 ± 0.042
eval/Float32/evaluation_turbo	0.528 ± 0.031 ms	0.537 ± 0.03 ms	0.984 ± 0.08
eval/Float32/evaluation_turbo_bumper	0.611 ± 0.017 ms	0.612 ± 0.018 ms	0.998 ± 0.04
eval/Float64/derivative	14.9 ± 1.1 ms	14.8 ± 1.2 ms	1 ± 0.11
eval/Float64/derivative_turbo	14.7 ± 1 ms	14.8 ± 0.95 ms	0.994 ± 0.093
eval/Float64/evaluation	3.21 ± 0.35 ms	3.15 ± 0.36 ms	1.02 ± 0.16
eval/Float64/evaluation_bumper	1.26 ± 0.046 ms	1.26 ± 0.043 ms	1 ± 0.049
eval/Float64/evaluation_turbo	1.02 ± 0.063 ms	1.02 ± 0.065 ms	0.998 ± 0.089
eval/Float64/evaluation_turbo_bumper	1.26 ± 0.043 ms	1.27 ± 0.043 ms	0.998 ± 0.048
utils/combine_operators/break_sharing	0.0425 ± 0.0027 ms	0.0426 ± 0.0026 ms	0.997 ± 0.088
utils/convert/break_sharing	30.1 ± 4.6 μs	31 ± 4.9 μs	0.972 ± 0.21
utils/convert/preserve_sharing	0.105 ± 0.0083 ms	0.105 ± 0.0084 ms	0.994 ± 0.11
utils/copy/break_sharing	30.1 ± 3.7 μs	30.1 ± 4.9 μs	0.997 ± 0.2
utils/copy/preserve_sharing	0.106 ± 0.0094 ms	0.104 ± 0.0079 ms	1.02 ± 0.12
utils/count_constant_nodes/break_sharing	13.9 ± 2.2 μs	13.7 ± 2.2 μs	1.02 ± 0.23
utils/count_constant_nodes/preserve_sharing	0.0889 ± 0.0059 ms	0.0874 ± 0.0062 ms	1.02 ± 0.099
utils/count_depth/break_sharing	14.6 ± 2.1 μs	14.6 ± 2 μs	1 ± 0.2
utils/count_nodes/break_sharing	13.7 ± 2.2 μs	13 ± 1.8 μs	1.05 ± 0.22
utils/count_nodes/preserve_sharing	0.0885 ± 0.0066 ms	0.0882 ± 0.0066 ms	1 ± 0.11
utils/get_set_constants!/break_sharing	0.0349 ± 0.0035 ms	0.0354 ± 0.0047 ms	0.985 ± 0.16
utils/get_set_constants!/preserve_sharing	0.182 ± 0.0095 ms	0.182 ± 0.01 ms	0.997 ± 0.076
utils/get_set_constants_parametric	0.0505 ± 0.0064 ms	0.0513 ± 0.0073 ms	0.984 ± 0.19
utils/has_constants/break_sharing	8.19 ± 1.2 μs	8.23 ± 1.3 μs	0.994 ± 0.21
utils/has_operators/break_sharing	2.58 ± 0.2 μs	2.6 ± 0.2 μs	0.992 ± 0.11
utils/hash/break_sharing	25 ± 2.6 μs	24.6 ± 3.3 μs	1.02 ± 0.17
utils/hash/preserve_sharing	0.101 ± 0.0068 ms	0.103 ± 0.0076 ms	0.98 ± 0.098
utils/index_constant_nodes/break_sharing	31 ± 3.9 μs	30.5 ± 3.2 μs	1.02 ± 0.17
utils/index_constant_nodes/preserve_sharing	0.105 ± 0.0068 ms	0.105 ± 0.0072 ms	1 ± 0.095
utils/is_constant/break_sharing	8.66 ± 1.4 μs	8.58 ± 1.4 μs	1.01 ± 0.23
utils/simplify_tree/break_sharing	28.1 ± 3.5 μs	27.2 ± 3 μs	1.03 ± 0.17
utils/simplify_tree/preserve_sharing	0.109 ± 0.0065 ms	0.108 ± 0.007 ms	1.01 ± 0.089
utils/string_tree/break_sharing	0.491 ± 0.025 ms	0.5 ± 0.026 ms	0.981 ± 0.071
utils/string_tree/preserve_sharing	0.583 ± 0.025 ms	0.598 ± 0.022 ms	0.976 ± 0.055
time_to_load	0.228 ± 0.0033 s	0.23 ± 0.0043 s	0.991 ± 0.023

Memory benchmarks

	master	b2e17c6...	master / b2e17c6...
eval/ComplexF32/evaluation	0.981 k allocs: 2.51 MB	0.981 k allocs: 2.51 MB	1
eval/ComplexF64/evaluation	0.996 k allocs: 5.07 MB	1.01 k allocs: 5.14 MB	0.988
eval/Float32/derivative	4.74 k allocs: 17.9 MB	4.7 k allocs: 17.7 MB	1.01
eval/Float32/derivative_turbo	4.54 k allocs: 17.1 MB	4.68 k allocs: 17.6 MB	0.971
eval/Float32/evaluation	0.975 k allocs: 1.27 MB	0.99 k allocs: 1.29 MB	0.985
eval/Float32/evaluation_bumper	0.303 k allocs: 0.393 MB	0.303 k allocs: 0.393 MB	1
eval/Float32/evaluation_turbo	0.951 k allocs: 1.24 MB	0.972 k allocs: 1.27 MB	0.978
eval/Float32/evaluation_turbo_bumper	0.303 k allocs: 0.393 MB	0.303 k allocs: 0.393 MB	1
eval/Float64/derivative	4.78 k allocs: 0.035 GB	4.77 k allocs: 0.0349 GB	1
eval/Float64/derivative_turbo	4.8 k allocs: 0.0351 GB	4.75 k allocs: 0.0347 GB	1.01
eval/Float64/evaluation	0.99 k allocs: 2.53 MB	1.01 k allocs: 2.58 MB	0.982
eval/Float64/evaluation_bumper	0.303 k allocs: 0.771 MB	0.303 k allocs: 0.771 MB	1
eval/Float64/evaluation_turbo	0.996 k allocs: 2.55 MB	0.978 k allocs: 2.5 MB	1.02
eval/Float64/evaluation_turbo_bumper	0.303 k allocs: 0.771 MB	0.303 k allocs: 0.771 MB	1
utils/combine_operators/break_sharing	4 allocs: 0.953 kB	4 allocs: 0.953 kB	1
utils/convert/break_sharing	2 k allocs: 0.123 MB	2 k allocs: 0.123 MB	1
utils/convert/preserve_sharing	2.4 k allocs: 0.192 MB	2.4 k allocs: 0.192 MB	1
utils/copy/break_sharing	2 k allocs: 0.123 MB	2 k allocs: 0.123 MB	1
utils/copy/preserve_sharing	2.4 k allocs: 0.192 MB	2.4 k allocs: 0.192 MB	1
utils/count_constant_nodes/break_sharing	4 allocs: 0.953 kB	4 allocs: 0.953 kB	1
utils/count_constant_nodes/preserve_sharing	0.404 k allocs: 0.0696 MB	0.404 k allocs: 0.0696 MB	1
utils/count_depth/break_sharing	4 allocs: 0.953 kB	4 allocs: 0.953 kB	1
utils/count_nodes/break_sharing	4 allocs: 0.953 kB	4 allocs: 0.953 kB	1
utils/count_nodes/preserve_sharing	0.404 k allocs: 0.0696 MB	0.404 k allocs: 0.0696 MB	1
utils/get_set_constants!/break_sharing	0.898 k allocs: 25.2 kB	0.898 k allocs: 25.2 kB	1
utils/get_set_constants!/preserve_sharing	1.7 k allocs: 0.138 MB	1.7 k allocs: 0.138 MB	1
utils/get_set_constants_parametric	1.42 k allocs: 0.0663 MB	1.42 k allocs: 0.0663 MB	1
utils/has_constants/break_sharing	4 allocs: 0.203 kB	4 allocs: 0.203 kB	1
utils/has_operators/break_sharing	4 allocs: 0.203 kB	4 allocs: 0.203 kB	1
utils/hash/break_sharing	0.104 k allocs: 2.52 kB	0.104 k allocs: 2.52 kB	1
utils/hash/preserve_sharing	0.504 k allocs: 0.0711 MB	0.504 k allocs: 0.0711 MB	1
utils/index_constant_nodes/break_sharing	2.1 k allocs: 0.094 MB	2.1 k allocs: 0.094 MB	1
utils/index_constant_nodes/preserve_sharing	2.5 k allocs: 0.163 MB	2.5 k allocs: 0.163 MB	1
utils/is_constant/break_sharing	4 allocs: 0.203 kB	4 allocs: 0.203 kB	1
utils/simplify_tree/break_sharing	4 allocs: 0.953 kB	4 allocs: 0.953 kB	1
utils/simplify_tree/preserve_sharing	0.404 k allocs: 0.0696 MB	0.404 k allocs: 0.0696 MB	1
utils/string_tree/break_sharing	11.8 k allocs: 1.04 MB	11.8 k allocs: 1.04 MB	1
utils/string_tree/preserve_sharing	12.2 k allocs: 1.11 MB	12.2 k allocs: 1.11 MB	1
time_to_load	0.159 k allocs: 11.2 kB	0.159 k allocs: 11.2 kB	1