Disable mjsunit test when parallel recompilation is not available.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/20573003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15907 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/regress/regress-prepare-break-while-recompile.js

@@ -28,6 +28,11 @@
 // Flags: --expose-debug-as debug --allow-natives-syntax
 // Flags: --parallel-recompilation-delay=300
 
+if (!%IsParallelRecompilationSupported()) {
+  print("Parallel recompilation is disabled. Skipping this test.");
+  quit();
+}
+
 Debug = debug.Debug
 
 function foo() {