Fix resolve variable with non-string. (#9403)

* Fix resolve variable with non-string.
* Fix spelling errors.

Author: sean-mcmanus

Extension/src/LanguageServer/client.ts

@@ -88,7 +88,7 @@ interface CodeActionWorkspaceEdit {
 
 interface CodeActionPerUriInfo {
     // These two arrays have the same length, i.e. index i of identifiers
-    // is usee to index into workspaceEdits to get the corresponding edit.
+    // is used to index into workspaceEdits to get the corresponding edit.
     identifiers: CodeAnalysisDiagnosticIdentifier[];
     workspaceEdits?: CodeActionWorkspaceEdit[];
 
@@ -2246,7 +2246,7 @@ export class DefaultClient implements Client {
             configJson = `Current Configuration:\n${JSON.stringify(this.configuration.CurrentConfiguration, null, 4)}\n`;
         }
 
-        // Get diagnotics for configuration provider info.
+        // Get diagnostics for configuration provider info.
         let configurationLoggingStr: string = "";
         const tuSearchStart: number = response.diagnostics.indexOf("Translation Unit Mappings:");
         if (tuSearchStart >= 0) {

Extension/src/common.ts

@@ -342,6 +342,14 @@ export function resolveVariables(input: string | undefined, additionalEnvironmen
         return "";
     }
 
+    // jsonc parser may assign a non-string object to a string.
+    // TODO: https://github.com/microsoft/vscode-cpptools/issues/9414
+    if (!isString(input)) {
+        const inputAny: any = input;
+        input = inputAny.toString();
+        return input ?? "";
+    }
+
     // Replace environment and configuration variables.
     let regexp: () => RegExp = () => /\$\{((env|config|workspaceFolder|file|fileDirname|fileBasenameNoExtension|execPath|pathSeparator)(\.|:))?(.*?)\}/g;
     let ret: string = input;