test codelens redundant function

[endlesstravel]

Description:

test codelens redundant function:
name start with Test[a-z] is not considered as test for go test
for example function TestaAbug is not not run in go test, but codelen is show run test | debug test on function.

Screenshots or recordings

Environment:

go version go1.16.3 windows/amd64

gopls -v version
Build info
----------
golang.org/x/tools/gopls v0.6.9
    golang.org/x/tools/gopls@v0.6.9 h1:LBBcE2y3Tb4bp79JVLWCQBbvYCFEs5ADGWsQDoSLk1Q=
    github.com/BurntSushi/toml@v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
    github.com/google/go-cmp@v0.5.4 h1:L8R9j+yAqZuZjsqh/z+F1NCffTKKLShY6zXTItVIZ8M=
    github.com/sergi/go-diff@v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
    golang.org/x/mod@v0.4.1 h1:Kvvh58BN8Y9/lBi7hTekvtMpm07eUZ0ck5pRHpsMWrY=
    golang.org/x/sync@v0.0.0-20201020160332-67f06af15bc9 h1:SQFwaSi55rU7vdNs9Yr0Z324VNlrF+0wMqRXT4St8ck=
    golang.org/x/sys@v0.0.0-20210124154548-22da62e12c0c h1:VwygUrnw9jn88c4u8GD3rZQbqrP/tgas88tPUbBxQrk=
    golang.org/x/tools@v0.1.1-0.20210319172145-bda8f5cee399 h1:O5bm8buX/OaamnfcBrkjn0SPUIU30jFmaS8lP+ikkxs=
    golang.org/x/xerrors@v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
    honnef.co/go/tools@v0.1.1 h1:EVDuO03OCZwpV2t/tLLxPmPiomagMoBOgfPt0FM+4IY=
    mvdan.cc/gofumpt@v0.1.0 h1:hsVv+Y9UsZ/mFZTxJZuHVI6shSQCtzZ11h1JEFPAZLw=
    mvdan.cc/xurls/v2@v2.2.0 h1:NSZPykBXJFCetGZykLAxaL6SIpvbVy/UFEniIfHAa8A=

code -v
1.55.1
08a217c4d27a02a5bcde898fd7981bda5b49391b
x64

Checking configured tools....
GOBIN: undefined
toolsGopath: 
gopath: C:\Users\Yx\go
GOROOT: D:\Program Files\Go
PATH: C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;D:\_shortcut;C:\Program Files (x86)\Git\cmd;C:\Program Files\nodejs\;C:\Program Files\dotnet\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;D:\neko-2.3.0-win64;D:\Program Files\Go\bin;D:\TDM-GCC-64\bin;C:\Users\Yx\AppData\Local\Programs\Python\Python39\Scripts\;C:\Users\Yx\AppData\Local\Programs\Python\Python39\;C:\Users\Yx\AppData\Local\Microsoft\WindowsApps;;C:\Users\Yx\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\Yx\AppData\Roaming\npm;C:\Users\Yx\.dotnet\tools;C:\Users\Yx\go\bin

   gopkgs: C:\Users\Yx\go\bin\gopkgs.exe installed
   go-outline: C:\Users\Yx\go\bin\go-outline.exe installed
   gotests: C:\Users\Yx\go\bin\gotests.exe installed
   gomodifytags: C:\Users\Yx\go\bin\gomodifytags.exe installed
   impl: C:\Users\Yx\go\bin\impl.exe installed
   goplay: C:\Users\Yx\go\bin\goplay.exe installed
   dlv: C:\Users\Yx\go\bin\dlv.exe installed
   dlv-dap: C:\Users\Yx\go\bin\dlv-dap.exe installed
   staticcheck: C:\Users\Yx\go\bin\staticcheck.exe installed
   gopls: C:\Users\Yx\go\bin\gopls.exe installed

go env
Workspace Folder (hine): d:\test_ppp\hine
	set GO111MODULE=on
	set GOARCH=amd64
	set GOBIN=
	set GOCACHE=C:\Users\Yx\AppData\Local\go-build
	set GOENV=C:\Users\Yx\AppData\Roaming\go\env
	set GOEXE=.exe
	set GOFLAGS=
	set GOHOSTARCH=amd64
	set GOHOSTOS=windows
	set GOINSECURE=
	set GOMODCACHE=C:\Users\Yx\go\pkg\mod
	set GONOPROXY=
	set GONOSUMDB=
	set GOOS=windows
	set GOPATH=C:\Users\Yx\go
	set GOPRIVATE=
	set GOPROXY=https://goproxy.cn,direct
	set GOROOT=D:\Program Files\Go
	set GOSUMDB=sum.golang.org
	set GOTMPDIR=
	set GOTOOLDIR=D:\Program Files\Go\pkg\tool\windows_amd64
	set GOVCS=
	set GOVERSION=go1.16.3
	set GCCGO=gccgo
	set AR=ar
	set CC=gcc
	set CXX=g++
	set CGO_ENABLED=1
	set GOMOD=d:\test_ppp\hine\go.mod
	set CGO_CFLAGS=-g -O2
	set CGO_CPPFLAGS=
	set CGO_CXXFLAGS=-g -O2
	set CGO_FFLAGS=-g -O2
	set CGO_LDFLAGS=-g -O2
	set PKG_CONFIG=pkg-config
	set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=C:\Users\Yx\AppData\Local\Temp\go-build3996959707=/tmp/go-build -gno-record-gcc-switches

[gopherbot]

Change https://golang.org/cl/309631 mentions this issue: src/testUtils: tighten test function detection regex