Missing strikethrough for deprecated functions

[festo]

What version of Go, VS Code & VS Code Go extension are you using?

• Run go version to get version of Go
  • go version go1.13.1 darwin/amd64
• Run code -v or code-insiders -v to get version of VS Code or VS Code Insiders

1.48.2 
a0479759d6e9ea56afa657e454193f72aef85bd0 
x64

• Check your installed extensions to get the version of the VS Code Go extension
  • v0.16.1
• Run go env to get the go development environment details

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/festo/Library/Caches/go-build"
GOENV="/Users/festo/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/festo/projects"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/Cellar/go/1.13.1/libexec"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/Cellar/go/1.13.1/libexec/pkg/tool/darwin_amd64"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/rw/8nr3dydx39xgdjs1hld1dws00000gn/T/go-build888602545=/tmp/go-build -gno-record-gcc-switches -fno-common"

Share the Go related settings you have added/edited

  "go.lintFlags": [
        "--fast"
 ],
"[go]": {
    "editor.formatOnSave": true
},
"go.lintTool": "golangci-lint",
"go.useLanguageServer": true,
"go.formatTool": "gofmt",

Describe the bug

The editor doesn't mark deprecated functions with a strikethrough

Steps to reproduce the behaviour:

1. Mark a function with // Deprecated: ... comment
2. Use the function somewhere
3. See error

Screenshots or recordings

[hyangah]

Language server can provide the deprecation diagnostic tag,
and it looks like there is already a feature request in gopls side
golang/go#40447.

cc @stamblerre

[stamblerre]

Yep, let's close this as a duplicate.

[stamblerre]

Duplicate of golang/go#40447