internal/lsp/hooks: enable staticcheck hooks

Forgot to enable the staticcheck hooks when I created a struct for analyzers inside of the lsp (https://go-review.googlesource.com/c/tools/+/223662).

Change-Id: Ice7798089100107113741caed3ddc41d172830b4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/225837
Run-TryBot: Rohan Challa <rohan@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>

gopls/internal/hooks/analysis.go

@@ -14,17 +14,17 @@ import (
 func updateAnalyzers(options *source.Options) {
 	if options.StaticCheck {
 		for _, a := range simple.Analyzers {
-			options.Analyzers[a.Name] = source.Analyzer{Analyzer: a}
+			options.Analyzers[a.Name] = source.Analyzer{Analyzer: a, Enabled: true}
 		}
 		for _, a := range staticcheck.Analyzers {
 			// This check conflicts with the vet printf check (golang/go#34494).
 			if a.Name == "SA5009" {
 				continue
 			}
-			options.Analyzers[a.Name] = source.Analyzer{Analyzer: a}
+			options.Analyzers[a.Name] = source.Analyzer{Analyzer: a, Enabled: true}
 		}
 		for _, a := range stylecheck.Analyzers {
-			options.Analyzers[a.Name] = source.Analyzer{Analyzer: a}
+			options.Analyzers[a.Name] = source.Analyzer{Analyzer: a, Enabled: true}
 		}
 	}
 }