8315770: serviceability/sa/TestJmapCoreMetaspace.java should run with -XX:-VerifyDependencies

Reviewed-by: shade, kevinw, cjplummer, lmesnik

test/hotspot/jtreg/serviceability/sa/TestJmapCore.java

@@ -73,6 +73,9 @@ public class TestJmapCore {
     static void test(String type) throws Throwable {
         ProcessBuilder pb = ProcessTools.createTestJvm("-XX:+CreateCoredumpOnCrash",
                 "-Xmx512m", "-XX:MaxMetaspaceSize=64m", "-XX:+CrashOnOutOfMemoryError",
+                // The test loads lots of small classes to exhaust Metaspace, skip method
+                // dependency verification to improve performance in debug builds.
+                Platform.isDebugBuild() ? "-XX:-VerifyDependencies" : "--show-version",
                 CoreUtils.getAlwaysPretouchArg(true),
                 TestJmapCore.class.getName(), type);