vscode-go: create separate tsconfig for builds

Adding a separate tsconfig for builds will allow us to have strict
type checking rules enabled for editor environments before enforcing
them for builds and tests.

For golang#57.

Change-Id: I5059e9bbcc87258ad8accd4c476dd9d9d71f0406
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/401615
TryBot-Result: kokoro <[email protected]>
Run-TryBot: Jamal Carvalho <[email protected]>
Reviewed-by: Benny Siegert <[email protected]>
Reviewed-by: Hyang-Ah Hana Kim <[email protected]>

.vscode/tasks.json

@@ -33,7 +33,7 @@
 	"tasks": [
 		{
 			"type": "typescript",
-			"tsconfig": "tsconfig.json",
+			"tsconfig": "./tsconfig.build.json",
 			"problemMatcher": [
 				"$tsc"
 			]
@@ -49,7 +49,7 @@
 			"group": {
 				"kind": "build",
 				"isDefault": true
-			}
+			},
 		},
 		{
 			"type": "npm",

package.json

@@ -38,9 +38,9 @@
     "bundle": "esbuild src/goMain.ts debugAdapter=src/debugAdapter/goDebug.ts --bundle --outdir=dist --external:vscode --format=cjs --platform=node",
     "bundle-dev": "npm run bundle -- --sourcemap",
     "bundle-watch": "npm run bundle -- --sourcemap --watch",
-    "test-compile": "tsc -p ./",
+    "test-compile": "tsc -p ./tsconfig.build.json",
     "compile": "npm run bundle",
-    "watch": "tsc -watch -p ./",
+    "watch": "tsc -watch -p ./tsconfig.build.json",
     "test": "npm run test-compile && node ./out/test/runTest.js",
     "lint": "gts lint src test",
     "fix-lint": "gts fix src test",

tsconfig.build.json

@@ -0,0 +1,11 @@
+{
+	"extends": "./tsconfig.json",
+	"compilerOptions": {
+		"strict": false,
+		"noImplicitAny": true,
+		"noImplicitThis": true,
+		"alwaysStrict": true,
+		"strictBindCallApply": true,
+		"strictFunctionTypes": true,
+	}
+}

tsconfig.json

@@ -7,15 +7,8 @@
 		"lib": [
 			"es2017"
 		],
-		//"strict": true,
-		"noImplicitAny": true,
-		"noImplicitThis": true,
-		"alwaysStrict": true,
-		"strictBindCallApply": true,
-		"strictFunctionTypes": true,
+		"strict": true,
 		"esModuleInterop": true,
-		//"strictNullChecks": true,
-		//"strictPropertyInitialization": true,
 	},
 	"exclude": [
 		"node_modules",