test: test explorer UI does not recognize FuzzTest

[hyangah]

run test codelens appears but it's not recognized in the Testing UI.

We also need to check how Testing UI handles the fuzz test case that looks like dynamically found subtest.

Running tool: /Users/hakim/sdk/gotip/bin/go test -timeout 30s -run ^FuzzReverse$ work

--- FAIL: FuzzReverse (0.00s)
    --- FAIL: FuzzReverse/69b6bf02dbaa368582724dd438c1ca203a082a6f7648e47766b7251d68dbde57 (0.00s)
        /Users/hakim/ww/reverse_test.go:36: Reverse produced invalid UTF-8 string "\x97\xcf"
FAIL
FAIL	work	0.184s
FAIL

[gopherbot]

Change https://golang.org/cl/380501 mentions this issue: src/goTest: remove '#' in subtest name parsing cutset

[gopherbot]

Change https://golang.org/cl/380500 mentions this issue: src/goTest: detect Fuzz test and adjust subtest name parsing

[gopherbot]

Change https://golang.org/cl/380500 mentions this issue: src/goTest: detect Fuzz tests and list them in test explorer UI

[gopherbot]

Change https://golang.org/cl/383218 mentions this issue: [release] src/goTest: detect Fuzz tests and list them in test explorer UI

[gopherbot]

Change https://go.dev/cl/380500 mentions this issue: src/goTest: detect Fuzz tests and list them in test explorer UI

[gopherbot]

Change https://go.dev/cl/383218 mentions this issue: [release] src/goTest: detect Fuzz tests and list them in test explorer UI

[gopherbot]

Change https://go.dev/cl/380501 mentions this issue: src/goTest: remove '#' in subtest name parsing cutset