Skip parallel recompilation tests if parallel recompilation is disabled.

test/mjsunit/parallel-initial-prototype-change.js

Index: test/mjsunit/parallel-initial-prototype-change.js
diff --git a/test/mjsunit/parallel-initial-prototype-change.js b/test/mjsunit/parallel-initial-prototype-change.js
index 5544bebc1d49256f50b00a42d71a06f740ed7aaa..9f698bae6301603ac9db208b037609b51ff64ec8 100644
--- a/test/mjsunit/parallel-initial-prototype-change.js
+++ b/test/mjsunit/parallel-initial-prototype-change.js
@@ -28,6 +28,11 @@
 // Flags: --allow-natives-syntax
 // Flags: --parallel-recompilation --parallel-recompilation-delay=50
 
+if (!%IsParallelRecompilationSupported()) {
+  print("Parallel recompilation is disabled. Skipping this test.");
+  quit();
+}
+
 function assertUnoptimized(fun) {
   assertTrue(%GetOptimizationStatus(fun) != 1);
 }