allow setting symbol server URL

Author: pfitzseb

src/languageserverinstance.jl

@@ -63,14 +63,14 @@ mutable struct LanguageServerInstance
 
     shutdown_requested::Bool
 
-    function LanguageServerInstance(pipe_in, pipe_out, env_path="", depot_path="", err_handler=nothing, symserver_store_path=nothing, download=true)
+    function LanguageServerInstance(pipe_in, pipe_out, env_path="", depot_path="", err_handler=nothing, symserver_store_path=nothing, download=true, symbolcache_upstream = nothing)
         new(
             JSONRPC.JSONRPCEndpoint(pipe_in, pipe_out, err_handler),
             Set{String}(),
             Dict{URI2,Document}(),
             env_path,
             depot_path,
-            SymbolServer.SymbolServerInstance(depot_path, symserver_store_path),
+            SymbolServer.SymbolServerInstance(depot_path, symserver_store_path; symbolcache_upstream = symbolcache_upstream),
             Channel(Inf),
             StaticLint.ExternalEnv(deepcopy(SymbolServer.stdlibs), SymbolServer.collect_extended_methods(SymbolServer.stdlibs), collect(keys(SymbolServer.stdlibs))),
             Dict(),