show userpresets in project outline (#3877)

Author: moyo1997

CHANGELOG.md

@@ -6,6 +6,7 @@ Bug Fixes:
 
 - Fix issue where `cmake.preferredGenerators` wasn't falling back to the next entry when the first entry didn't exist [#2709](https://github.com/microsoft/vscode-cmake-tools/issues/2709)
 - Potential fix for attempting to load a non-variants file as a variants file and throwing a parse exception [#3727](https://github.com/microsoft/vscode-cmake-tools/issues/3727)
+- Fix issue where `cmakeUserPresets.json` not showing up in project outline. [#3832](https://github.com/microsoft/vscode-cmake-tools/issues/3832)
 - Fix edge case where parsing tests fails when additional output is printed before tests json. [#3750](https://github.com/microsoft/vscode-cmake-tools/issues/3750)
 - Fix issue where `Configure with CMake Debugger` fails on restart because the previously used pipe to CMake Debugger is no longer available. [#3582](https://github.com/microsoft/vscode-cmake-tools/issues/3582)
 

src/projectOutline/projectOutline.ts

@@ -501,6 +501,11 @@ export class ProjectNode extends BaseNode {
             children.push(new SourceFileNode(this.id, this.folder, this.sourceDirectory, possiblePreset));
         }
 
+        const possibleUserPreset = path.join(this.sourceDirectory, 'CMakeUserPresets.json');
+        if (fs.existsSync(possibleUserPreset)) {
+            children.push(new SourceFileNode(this.id, this.folder, this.sourceDirectory, possibleUserPreset));
+        }
+
         return children;
     }