Sync WPT with upstream (04-02-2024) (#31256)

* Update web-platform-tests to revision b'faa6d42ce21d126155dee771786ad7c74efbcba5'

* Update test expectation

---------

Co-authored-by: cybai <cyb.ai.815@gmail.com>

tests/wpt/meta/dom/observable/tentative/idlharness.html.ini

@@ -0,0 +1,102 @@
+[idlharness.html]
+  [Subscriber interface: existence and properties of interface object]
+    expected: FAIL
+
+  [Subscriber interface object length]
+    expected: FAIL
+
+  [Subscriber interface object name]
+    expected: FAIL
+
+  [Subscriber interface: existence and properties of interface prototype object]
+    expected: FAIL
+
+  [Subscriber interface: existence and properties of interface prototype object's "constructor" property]
+    expected: FAIL
+
+  [Subscriber interface: existence and properties of interface prototype object's @@unscopables property]
+    expected: FAIL
+
+  [Subscriber interface: operation next(any)]
+    expected: FAIL
+
+  [Subscriber interface: operation error(any)]
+    expected: FAIL
+
+  [Subscriber interface: operation complete()]
+    expected: FAIL
+
+  [Subscriber interface: operation addTeardown(VoidFunction)]
+    expected: FAIL
+
+  [Subscriber interface: attribute active]
+    expected: FAIL
+
+  [Subscriber interface: attribute signal]
+    expected: FAIL
+
+  [Subscriber must be primary interface of (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })()]
+    expected: FAIL
+
+  [Stringification of (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })()]
+    expected: FAIL
+
+  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "next(any)" with the proper type]
+    expected: FAIL
+
+  [Subscriber interface: calling next(any) on (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "error(any)" with the proper type]
+    expected: FAIL
+
+  [Subscriber interface: calling error(any) on (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "complete()" with the proper type]
+    expected: FAIL
+
+  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "addTeardown(VoidFunction)" with the proper type]
+    expected: FAIL
+
+  [Subscriber interface: calling addTeardown(VoidFunction) on (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "active" with the proper type]
+    expected: FAIL
+
+  [Subscriber interface: (() => { let s = null; new Observable(_s => s = _s).subscribe({}); return s })() must inherit property "signal" with the proper type]
+    expected: FAIL
+
+  [Observable interface: existence and properties of interface object]
+    expected: FAIL
+
+  [Observable interface object length]
+    expected: FAIL
+
+  [Observable interface object name]
+    expected: FAIL
+
+  [Observable interface: existence and properties of interface prototype object]
+    expected: FAIL
+
+  [Observable interface: existence and properties of interface prototype object's "constructor" property]
+    expected: FAIL
+
+  [Observable interface: existence and properties of interface prototype object's @@unscopables property]
+    expected: FAIL
+
+  [Observable interface: operation subscribe(optional ObserverUnion, optional SubscribeOptions)]
+    expected: FAIL
+
+  [Observable must be primary interface of new Observable(() => {})]
+    expected: FAIL
+
+  [Stringification of new Observable(() => {})]
+    expected: FAIL
+
+  [Observable interface: new Observable(() => {}) must inherit property "subscribe(optional ObserverUnion, optional SubscribeOptions)" with the proper type]
+    expected: FAIL
+
+  [Observable interface: calling subscribe(optional ObserverUnion, optional SubscribeOptions) on new Observable(() => {}) with too few arguments must throw TypeError]
+    expected: FAIL