Skip a test assertion that's invalid on 4.103

Author: fredemmott

tests/ReifiedGenericsTest.hack

@@ -40,9 +40,13 @@ final class ReifiedGenericsTest extends \Facebook\HackTest\HackTest {
   public function testShapeOfVecAndDicts(): void {
     $valid = shape('vec' => vec['foo', 'bar'], 'dict' => dict[1 => 2]);
     $coercable = dict['vec' => vec['foo', 'bar'], 'dict' => darray[1 => 2]];
+
     expect(matches<this::TShapeOfVecAndDicts>($valid))->toBeSame($valid);
-    expect(() ==> matches<this::TShapeOfVecAndDicts>($coercable))
-      ->toThrow(IncorrectTypeException::class);
+    if (darray[] !== dict[]) {
+      // They are equivalent as of v4.103
+      expect(() ==> matches<this::TShapeOfVecAndDicts>($coercable))
+        ->toThrow(IncorrectTypeException::class);
+    }
     expect(TypeCoerce\match<this::TShapeOfVecAndDicts>($coercable))
       ->toBeSame($valid);
     expect(() ==> TypeCoerce\match<this::TShapeOfVecAndDicts>('hello'))