Show build graph statistics in ghcide-bench

[pepeiborra]

This adds 5 new columns to the benchmark outputs:

• buildRulesBuilt - for which the value didn't change
• buildRulesChanged - for which the value did change
• buildRulesVisited - for which the value was not even recomputed
• buildRulesTotal - including the rules that were not visited in the last build
• buildEdges - total number of edges in the build graph

Example output:

cabal exec cabal run ghcide-bench -- -- -s "edit" --samples 2 --no-clean --example-module Distribution/Simple.hs
Up to date
Config {verbosity = Normal, shakeProfiling = Nothing, otMemoryProfiling = Nothing, outputCSV = "results.csv", buildTool = Cabal, ghcideOptions = [], matches = ["edit"], repetitions = Just 2, ghcide = "ghcide", timeoutLsp = 60, example = Example {exampleName = "name", exampleDetails = Right (ExamplePackage {packageName = "Cabal", packageVersion = Version {versionBranch = [3,4,0,0], versionTags = []}}), exampleModules = ["Distribution/Simple.hs"], exampleExtraArgs = []}}
starting test
Setting up document contents took 1.95s
Running edit benchmark
0.00s
0.17s
name | success | samples | startup | setup | userTime | delayedTime | totalTime | buildRulesBuilt | buildRulesChanged | buildRulesVisited | buildRulesTotal | buildEdges
---- | ------- | ------- | ------- | ----- | -------- | ----------- | --------- | --------------- | ----------------- | ----------------- | --------------- | ----------
edit | True    | 2       | 1.98s   | 0.00s | 0.17s    | 1.61s       | 1.78s     | 8               | 7                 | 1219              | 6345            | 148658