[pkg/vm_snapshot_analysis] Update expectations in test.

Fixes https://github.com/dart-lang/sdk/issues/45986

TEST=pkg/vm_snapshot_analysis/test/instruction_sizes_test
Cq-Include-Trybots: luci.dart.try:pkg-mac-release-try
Change-Id: I0ab4ffb04349208007f01ff989a26efd297ec64b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199427
Auto-Submit: Tess Strickland <sstrickl@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

pkg/vm_snapshot_analysis/test/instruction_sizes_test.dart

@@ -821,9 +821,14 @@ void main() async {
                       '#type': 'class',
                       'makeSomeClosures': {
                         '#type': 'function',
+                        // Type of returned list is more precise, as closures
+                        // that returned non-K objects were removed, causing the
+                        // type K* to be attributed to makeSomeClosures instead
+                        // of just those inner closures that returned that type.
+                        '#size': greaterThan(0),
                         '<anonymous closure>': {
                           '#type': 'function',
-                          '#size': lessThan(0),
+                          '#size': lessThan(0), // Some inner closures removed.
                         },
                       },
                     },