Convert snapshot test to runnable test

Author: ospencer

compiler/test/__snapshots__/pattern_matching.af0ac1b8.0.snapshot

@@ -228,7 +228,11 @@ describe("pattern matching", ({test, testSkip}) => {
   // Aliases
   assertSnapshot("alias_match_1", "match (true) { _ as p => p }");
   assertSnapshot("alias_match_2", "match (true) { a as b => a && b }");
-  assertSnapshot("alias_match_3", "match (true) { true | false as p => p }");
+  assertRun(
+    "alias_match_3",
+    "match (true) { true | false as p => print(p) }",
+    "true\n",
+  );
   assertSnapshot(
     "alias_match_4",
     "match (Some(5)) { Some(3 | 4 as a) => a, Some(_) | None => 5, _ => 6 }",