Tests related files identification based on historical co-occurrence

-- a.go --
package main

func a() {}

-- b.go --
package main

func b() {}

-- c.go --
package main

func c() {}

-- p.go --
package p

func d() {}

-- .commit --
Add functions to a.go and b.go

-- a.go --
package main

func a() {
    // Update 1
}

-- b.go --
package main

func b() {
    // Update 1
}

-- .commit --
Add functions to a.go and b.go again

-- a.go --
package main

func a() {
    // Update 2
}

-- b.go --
package main

func b() {
    // Update 2
}

-- .commit --
Add functions to a.go and c.go

-- a.go --
package main

func a() {
    // Update 3
}

-- c.go --
package main

func c() {
    // Update 1
}

-- .commit --
Update file a.go only

-- a.go --
package main

func a() {
    x := 42 // new gopls issue to view mixed info/error lines
}

-- .run_test --
# Info

Potentially related files:

- p.go (33%)

These files have historically changed with the files you have modified. Consider whether they require updates as well.


# Errors

Gopls check issues detected:

1. /PATH/TO/REPO/a.go:4:5-6: declared and not used: x

IMPORTANT: Only fix new gopls check issues in parts of the code that you have already edited. Do not change existing code that was not part of your current edits.


Please fix before proceeding.