8347496: Test jdk/jfr/jvm/TestModularImage.java fails after JDK-8347124: No javac

Backport-of: 3967696386ecc706927f05dfae0841b3f23e319d

Author: jerboaa

test/jdk/jdk/jfr/jvm/TestModularImage.java

@@ -43,6 +43,7 @@
  *          as expected
  * @requires vm.hasJFR
  * @library /test/lib
+ * @modules jdk.compiler jdk.jlink
  * @comment Test is being run in othervm to support JEP 493 enabled
  *          JDKs which don't allow patched modules. Note that jtreg patches
  *          module java.base to add java.lang.JTRegModuleHelper. If then a