src/goEnv.ts: pass uri to getGoConfig

The newEnvironment function adds a parameter for uri
so that it can be passed to getGoConfig. This ensures
that the correct toolsEnvVars are provided to commands
that use toolExecutionEnvironment for env values.

Change-Id: I78bb430e8d5a198cefb46103a966f37daefba620
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/388434
Trust: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>

src/goEnv.ts

@@ -55,7 +55,7 @@ export function toolInstallationEnvironment(): NodeJS.Dict<string> {
 // toolExecutionEnvironment returns the environment in which tools should
 // be executed. It always returns a new object.
 export function toolExecutionEnvironment(uri?: vscode.Uri, addProcessEnv = true): NodeJS.Dict<string> {
-	const env = newEnvironment(addProcessEnv);
+	const env = newEnvironment(uri, addProcessEnv);
 	const gopath = getCurrentGoPath(uri);
 	if (gopath) {
 		env['GOPATH'] = gopath;
@@ -69,8 +69,8 @@ export function toolExecutionEnvironment(uri?: vscode.Uri, addProcessEnv = true)
 	return env;
 }
 
-function newEnvironment(addProcessEnv = true): NodeJS.Dict<string> {
-	const toolsEnvVars = getGoConfig()['toolsEnvVars'];
+function newEnvironment(uri?: vscode.Uri, addProcessEnv = true): NodeJS.Dict<string> {
+	const toolsEnvVars = getGoConfig(uri)['toolsEnvVars'];
 	const env = addProcessEnv ? Object.assign({}, process.env, toolsEnvVars) : Object.assign({}, toolsEnvVars);
 	if (toolsEnvVars && typeof toolsEnvVars === 'object') {
 		Object.keys(toolsEnvVars).forEach(