Suppress compiler warnings in .mops and .vessel directories (#274)

* Hide warnings in '.mops' and '.vessel' directories

* Refactor

* 0.16.1

package.json

@@ -2,7 +2,7 @@
     "name": "vscode-motoko",
     "displayName": "Motoko",
     "description": "Motoko language support",
-    "version": "0.16.0",
+    "version": "0.16.1",
     "publisher": "dfinity-foundation",
     "repository": "https://github.com/dfinity/vscode-motoko",
     "engines": {

src/server/server.ts

@@ -106,6 +106,9 @@ const ignoreGlobs = [
     '**/.vessel/.tmp/**/*', // temporary Vessel files
 ];
 
+const shouldHideWarnings = (uri: string) =>
+    uri.includes('/.vessel/') || uri.includes('/.mops/');
+
 const packageSourceCache = new Map();
 async function getPackageSources(
     directory: string,
@@ -866,6 +869,11 @@ function checkImmediate(uri: string | TextDocument): boolean {
                         !new RegExp(settings!.hideWarningRegex).test(message),
                 );
             }
+            if (resolvedUri && shouldHideWarnings(resolvedUri)) {
+                diagnostics = diagnostics.filter(
+                    ({ severity }) => severity === DiagnosticSeverity.Error,
+                );
+            }
         }
         const diagnosticMap: Record<string, Diagnostic[]> = {
             [virtualPath]: [], // Start with empty diagnostics for the main file