several minor edits to various dart-lang/sdk files

Change-Id: I62e5b46811ef5d4d4f280a9e334ba87a355bc1cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/205302
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Devon Carew <devoncarew@google.com>

pkg/test_runner/lib/src/options.dart

@@ -108,7 +108,6 @@ dartk:                Compile the Dart code into Kernel before running test.
 dartkp:               Compile the Dart code into Kernel and then Kernel into
                       AOT snapshot before running the test.
 spec_parser:          Parse Dart code using the specification parser.
-
 fasta:                Compile using CFE for errors, but do not run.
 ''',
         abbr: 'c',

sdk/lib/developer/profiler.dart

@@ -128,8 +128,8 @@ class Metrics {
     _metrics.remove(metric.name);
   }
 
-  // ignore: unused_element, called from native code
   @pragma("vm:entry-point", !const bool.fromEnvironment("dart.vm.product"))
+  // ignore: unused_element, called from native code
   static String? _printMetric(String id) {
     var metric = _metrics[id];
     if (metric == null) {
@@ -138,8 +138,8 @@ class Metrics {
     return json.encode(metric._toJSON());
   }
 
-  // ignore: unused_element, called from native code
   @pragma("vm:entry-point", !const bool.fromEnvironment("dart.vm.product"))
+  // ignore: unused_element, called from native code
   static String _printMetrics() {
     var metrics = [];
     for (var metric in _metrics.values) {

sdk/lib/vmservice_libraries.yaml

@@ -2,7 +2,7 @@
 # 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.
 
-# Note: if you edit this file, you must also edit libraries.json in this
+# Note: if you edit this file, you must also generate libraries.json in this
 # directory:
 #
 #     python3 ./tools/yaml2json.py sdk/lib/vmservice_libraries.yaml sdk/lib/vmservice_libraries.json