Add negation to single-identifier tests in status files.

tests/co19/co19-dart2js.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 [ $compiler == dart2js ]
 Language/Expressions/Function_Invocation/async_cleanup_t01: Skip # https://github.com/dart-lang/sdk/issues/28873
 Language/Expressions/Function_Invocation/async_cleanup_t03: Skip # https://github.com/dart-lang/sdk/issues/28873
 Language/Expressions/Function_Invocation/async_cleanup_t05: Skip # https://github.com/dart-lang/sdk/issues/28873
 Language/Expressions/Function_Invocation/async_cleanup_t06: Skip # https://github.com/dart-lang/sdk/issues/28873
 Language/Expressions/Function_Invocation/async_cleanup_t08: Skip # https://github.com/dart-lang/sdk/issues/28873
@@ skipping 538 matching lines @@
 WebPlatformTest/shadow-dom/events/events-that-are-always-stopped/test-007_t01: Fail # please triage
 WebPlatformTest/shadow-dom/events/events-that-are-always-stopped/test-008_t01: Fail # please triage
 WebPlatformTest/shadow-dom/events/events-that-are-always-stopped/test-009_t01: Fail # please triage
 WebPlatformTest/shadow-dom/events/retargeting-focus-events/test-001_t01: Fail # please triage
 WebPlatformTest/shadow-dom/events/retargeting-focus-events/test-001_t02: Fail # please triage
 WebPlatformTest/shadow-dom/events/retargeting-focus-events/test-001_t05: Fail # please triage
 WebPlatformTest/shadow-dom/events/retargeting-focus-events/test-001_t06: Fail # please triage
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/test-005_t01: Fail # please triage
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/test-007_t01: Fail # please triage
 
-[ $compiler == dart2js && $checked != true && $runtime != d8 && $runtime != jsshell]
+[ $compiler == dart2js && ! $checked && $runtime != d8 && $runtime != jsshell]
 LayoutTests/fast/xpath/invalid-resolver_t01: RuntimeError # Please triage this failure
 
 [ $compiler == dart2js && $minified ]
 LibTest/typed_data/Float32List/runtimeType_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Float32x4List/runtimeType_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Float64List/runtimeType_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int16List/runtimeType_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int32List/runtimeType_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Int8List/runtimeType_A01_t01: fail # co19-roll r559: Please triage this failure
 LibTest/typed_data/Uint16List/runtimeType_A01_t01: fail # co19-roll r559: Please triage this failure
@@ skipping 2117 matching lines @@
 WebPlatformTest/shadow-dom/events/events-that-are-always-stopped/test-008_t01: Pass, RuntimeError # Issue 29634
 WebPlatformTest/shadow-dom/events/events-that-are-always-stopped/test-009_t01: Pass, RuntimeError # Issue 29634
 # End Roll 50 failures
 
 [ $compiler == dart2js && $runtime == drt && $minified && $csp ]
 LayoutTests/fast/dom/HTMLScriptElement/script-for-attribute-unexpected-execution_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/dom/HTMLScriptElement/script-reexecution_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/dom/HTMLTemplateElement/inertContents_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/dom/Range/create-contextual-fragment-script-unmark-already-started_t01: RuntimeError # Please triage this failure
 
-[ $compiler == dart2js && $runtime == drt && $minified != true && $csp != true]
+[ $compiler == dart2js && $runtime == drt && ! $minified && ! $csp]
 LayoutTests/fast/dom/HTMLScriptElement/remove-source_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/events/event-listener-html-non-html-confusion_t01: RuntimeError # Please triage this failure
 
 [ $compiler == dart2js && $runtime == drt && $fast_startup && $checked ]
 LayoutTests/fast/css-grid-layout/auto-content-resolution-rows_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/css-grid-layout/breadth-size-resolution-grid_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/css-grid-layout/calc-resolution-grid-item_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/css-grid-layout/grid-element-padding-margin_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/css-grid-layout/grid-element-shrink-to-fit_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/css-grid-layout/grid-item-margin-auto-columns-rows-horiz-bt_t01: RuntimeError # Please triage this failure
@@ skipping 62 matching lines @@
 LayoutTests/fast/text/text-combine-shrink-to-fit_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/xpath/xpath-result-eventlistener-crash_t01: RuntimeError # Please triage this failure
 LibTest/html/Node/ownerDocument_A01_t01: RuntimeError # Please triage this failure
 WebPlatformTest/DOMEvents/approved/Propagation.path.target.removed_t01: RuntimeError # Please triage this failure
 WebPlatformTest/custom-elements/instantiating/createElementNS_A05_t01: RuntimeError # Please triage this failure
 WebPlatformTest/custom-elements/instantiating/createElement_A05_t01: RuntimeError # Please triage this failure
 WebPlatformTest/dom/nodes/DOMImplementation-createDocumentType_t01: RuntimeError # Please triage this failure
 WebPlatformTest/html-templates/parsing-html-templates/clearing-the-stack-back-to-a-given-context/clearing-stack-back-to-a-table-row-context_t01: RuntimeError # Please triage this failure
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/ownerdocument-001_t01: RuntimeError # Please triage this failure
 
-[ $compiler == dart2js && $runtime == drt && $checked == false ]
+[ $compiler == dart2js && $runtime == drt && ! $checked ]
 LayoutTests/fast/xpath/invalid-resolver_t01: RuntimeError # Please triage this failure
 
 [ $compiler == dart2js && $runtime == ff ]
 Language/Expressions/Postfix_Expressions/property_decrement_t02: Skip # Times out. Please triage this failure
 Language/Statements/Yield_and_Yield_Each/Yield/execution_async_t01: RuntimeError # Issue 26615
 Language/Statements/Yield_and_Yield_Each/Yield/execution_async_t04: RuntimeError # Issue 26615
 LayoutTests/fast/alignment/parse-align-items_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/alignment/parse-align-self_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/alignment/parse-justify-self_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/animation/request-animation-frame-cancel2_t01: Skip # Times out and fails. Please triage this failure
@@ skipping 1325 matching lines @@
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/shadow-root-001_t01: RuntimeError # Please triage this failure
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/test-005_t01: RuntimeError # Please triage this failure
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/test-007_t01: RuntimeError # Please triage this failure
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/test-009_t01: RuntimeError # Please triage this failure
 WebPlatformTest/shadow-dom/shadow-trees/upper-boundary-encapsulation/test-011_t01: RuntimeError # Please triage this failure
 WebPlatformTest/webstorage/event_constructor_t01: RuntimeError # Please triage this failure
 WebPlatformTest/webstorage/event_constructor_t02: RuntimeError # Please triage this failure
 WebPlatformTest/webstorage/storage_local_setitem_quotaexceedederr_t01: Skip # Times out. Please triage this failure. Note that Chrome also requires the Slow flag. (Could just be a slow test).
 WebPlatformTest/webstorage/storage_session_setitem_quotaexceedederr_t01: Skip # Times out. Please triage this failure
 
-[ $compiler == dart2js && $runtime == ff && $checked == false]
+[ $compiler == dart2js && $runtime == ff && ! $checked]
 LayoutTests/fast/xpath/invalid-resolver_t01: RuntimeError # Please triage this failure
 
 [ $compiler == dart2js && $runtime == ff && $checked]
 LayoutTests/fast/css-intrinsic-dimensions/width-shrinks-avoid-floats_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/canvas/canvas-imageSmoothingEnabled-zero-size_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/canvas/webgl/framebuffer-object-attachment_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/canvas/webgl/oes-vertex-array-object_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/canvas/webgl/read-pixels-test_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/css-intrinsic-dimensions/intrinsic-sized-column-flex-items_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/css-intrinsic-dimensions/intrinsic-sized-flex-items_t01: RuntimeError # Please triage this failure
@@ skipping 4342 matching lines @@
 WebPlatformTest/webstorage/storage_builtins_t01: RuntimeError # Please triage this failure
 WebPlatformTest/webstorage/storage_local_setitem_quotaexceedederr_t01: Skip # Times out. Please triage this failure
 
 [ $compiler == dart2js && $runtime == ie11 && $builder_tag == win8]
 LibTest/typed_data/ByteData/offsetInBytes_A01_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/dom/XMLSerializer-attribute-entities_t01: RuntimeError # Please triage this failure
 LayoutTests/fast/dom/serialize-attribute_t01: RuntimeError # Please triage this failure
 
 [ $compiler == dart2js && $host_checked ]
 Language/Types/Function_Types/call_t01: Crash # Issue 28894