[Ignore] Bump tslint from 5.14.0 to 5.15.0 (#1887)

* Bump tslint from 5.14.0 to 5.15.0

Bumps [tslint](https://github.com/palantir/tslint) from 5.14.0 to 5.15.0.
- [Release notes](https://github.com/palantir/tslint/releases)
- [Changelog](https://github.com/palantir/tslint/blob/master/CHANGELOG.md)
- [Commits](palantir/tslint@5.14.0...5.15.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* Add I to interface

Author: dependabot[bot]

package-lock.json

@@ -52,7 +52,7 @@
     "mocha-multi-reporters": "~1.1.7",
     "rewire": "~4.0.1",
     "sinon": "~7.3.1",
-    "tslint": "~5.14.0",
+    "tslint": "~5.15.0",
     "typescript": "~3.4.3",
     "vsce": "~1.59.0",
     "vscode": "~1.1.33"

package.json

@@ -20,7 +20,7 @@ export interface IExtensionCommandQuickPickItem extends vscode.QuickPickItem {
 }
 
 export const InvokeExtensionCommandRequestType =
-    new RequestType<InvokeExtensionCommandRequestArguments, void, void, void>(
+    new RequestType<IInvokeExtensionCommandRequestArguments, void, void, void>(
         "powerShell/invokeExtensionCommand");
 
 export interface IEditorContext {
@@ -31,7 +31,7 @@ export interface IEditorContext {
     selectionRange: Range;
 }
 
-export interface InvokeExtensionCommandRequestArguments {
+export interface IInvokeExtensionCommandRequestArguments {
     name: string;
     context: IEditorContext;
 }
@@ -285,7 +285,7 @@ export class ExtensionCommandsFeature implements IFeature {
                 a.name.localeCompare(b.name));
     }
 
-    private showExtensionCommands(client: LanguageClient): Thenable<InvokeExtensionCommandRequestArguments> {
+    private showExtensionCommands(client: LanguageClient): Thenable<IInvokeExtensionCommandRequestArguments> {
 
         // If no extension commands are available, show a message
         if (this.extensionCommands.length === 0) {