Add a message explaining why we couldn't find a quote-wrapped path (#13521)

Author: bobbrow

Extension/src/LanguageServer/configurations.ts

@@ -1721,14 +1721,18 @@ export class CppProperties {
 
         for (const p of paths) {
             let pathExists: boolean = true;
+            let quotedPath: boolean = false;
             let resolvedPath: string = this.resolvePath(p);
             if (!resolvedPath) {
                 continue;
             }
 
             // Check if resolved path exists
             if (!fs.existsSync(resolvedPath)) {
-                if (assumeRelative && !path.isAbsolute(resolvedPath)) {
+                if (resolvedPath.match(/".*"/) !== null) {
+                    pathExists = false;
+                    quotedPath = true;
+                } else if (assumeRelative && !path.isAbsolute(resolvedPath)) {
                     continue;
                 } else if (!this.rootUri) {
                     pathExists = false;
@@ -1744,7 +1748,10 @@ export class CppProperties {
             }
 
             if (!pathExists) {
-                const message: string = localize('cannot.find', "Cannot find: {0}", resolvedPath);
+                let message: string = localize('cannot.find', "Cannot find: {0}", resolvedPath);
+                if (quotedPath) {
+                    message += '. ' + localize('wrapped.with.quotes', 'Do not add extra quotes around paths.');
+                }
                 errors.push(message);
                 continue;
             }
@@ -2132,6 +2139,9 @@ export class CppProperties {
                             badPath = `"${expandedPaths[0]}"`;
                         }
                         message = localize('cannot.find', "Cannot find: {0}", badPath);
+                        if (incorrectExpandedPaths.some(p => p.match(/".*"/) !== null)) {
+                            message += '.\n' + localize('wrapped.with.quotes', 'Do not add extra quotes around paths.');
+                        }
                         newSquiggleMetrics.PathNonExistent++;
                     } else {
                         // Check for file versus path mismatches.