Use OS path separator when matching glob (fixes #16090)

src/vs/platform/workspace/common/workspace.ts

@@ -34,7 +34,7 @@ export interface IWorkspaceContextService {
 	 * without leading or trailing slashes. Returns null if the file is not inside an opened
 	 * workspace.
 	 */
-	toWorkspaceRelativePath: (resource: URI) => string;
+	toWorkspaceRelativePath: (resource: URI, toOSPath?: boolean) => string;
 
 	/**
 	 * Given a workspace relative path, returns the resource with the absolute path.
@@ -89,9 +89,9 @@ export class WorkspaceContextService implements IWorkspaceContextService {
 		return false;
 	}
 
-	public toWorkspaceRelativePath(resource: URI): string {
+	public toWorkspaceRelativePath(resource: URI, toOSPath?: boolean): string {
 		if (this.isInsideWorkspace(resource)) {
-			return paths.normalize(paths.relative(this.workspace.resource.fsPath, resource.fsPath));
+			return paths.normalize(paths.relative(this.workspace.resource.fsPath, resource.fsPath), toOSPath);
 		}
 
 		return null;

src/vs/workbench/parts/files/browser/views/explorerViewer.ts

@@ -602,7 +602,7 @@ export class FileFilter implements IFilter {
 
 		// Hide those that match Hidden Patterns
 		const siblingsFn = () => siblings && siblings.map(c => c.name);
-		if (glob.match(this.hiddenExpression, this.contextService.toWorkspaceRelativePath(stat.resource), siblingsFn)) {
+		if (glob.match(this.hiddenExpression, this.contextService.toWorkspaceRelativePath(stat.resource, true), siblingsFn)) {
 			return false; // hidden through pattern
 		}
 

src/vs/workbench/test/workbenchTestServices.ts

@@ -96,8 +96,8 @@ export class TestContextService implements IWorkspaceContextService {
 		return false;
 	}
 
-	public toWorkspaceRelativePath(resource: URI): string {
-		return paths.makePosixAbsolute(paths.normalize(resource.fsPath.substr('c:'.length)));
+	public toWorkspaceRelativePath(resource: URI, toOSPath?: boolean): string {
+		return paths.makePosixAbsolute(paths.normalize(resource.fsPath.substr('c:'.length), toOSPath));
 	}
 
 	public toResource(workspaceRelativePath: string): URI {