RFR: 8162852: Mark stress compiler and gc tests with stress keyword

[Leonid Mesnik]

Please review following patch which marks 'stress' tests with 
corresponding keyword.

Issue: https://bugs.openjdk.java.net/browse/JDK-8162852

lmesnik at lmesnik-desktop:~/ws/hs-fast/hotspot$ hg diff
diff -r 2ea13db80d5c 
test/compiler/codecache/stress/RandomAllocationTest.java
--- a/test/compiler/codecache/stress/RandomAllocationTest.java Thu Jul 
21 16:29:21 2016 +0200
+++ b/test/compiler/codecache/stress/RandomAllocationTest.java Mon Aug 
01 13:55:00 2016 +0300
@@ -28,6 +28,7 @@

  /*
   * @test RandomAllocationTest
+ * @key stress
   * @library /testlibrary /test/lib
   * @modules java.base/jdk.internal.misc
   *          java.management
diff -r 2ea13db80d5c 
test/compiler/codecache/stress/UnexpectedDeoptimizationTest.java
--- a/test/compiler/codecache/stress/UnexpectedDeoptimizationTest.java 
Thu Jul 21 16:29:21 2016 +0200
+++ b/test/compiler/codecache/stress/UnexpectedDeoptimizationTest.java 
Mon Aug 01 13:55:00 2016 +0300
@@ -24,6 +24,7 @@

  /*
   * @test UnexpectedDeoptimizationTest
+ * @key stress
   * @library /testlibrary /test/lib
   * @modules java.base/jdk.internal.misc
   *          java.management
diff -r 2ea13db80d5c test/compiler/codegen/7184394/TestAESMain.java
--- a/test/compiler/codegen/7184394/TestAESMain.java    Thu Jul 21 
16:29:21 2016 +0200
+++ b/test/compiler/codegen/7184394/TestAESMain.java    Mon Aug 01 
13:55:00 2016 +0300
@@ -25,6 +25,7 @@
  /**
   * @test
   * @bug 7184394
+ * @key stress
   * @summary add intrinsics to use AES instructions
   * @library /testlibrary
   *
diff -r 2ea13db80d5c test/gc/g1/ihop/TestIHOPErgo.java
--- a/test/gc/g1/ihop/TestIHOPErgo.java Thu Jul 21 16:29:21 2016 +0200
+++ b/test/gc/g1/ihop/TestIHOPErgo.java Mon Aug 01 13:55:00 2016 +0300
@@ -24,6 +24,7 @@
   /*
   * @test TestIHOPErgo
   * @bug 8148397
+ * @key stress
   * @summary Test checks that behavior of Adaptive and Static IHOP at 
concurrent cycle initiation
   * @requires vm.gc.G1
   * @requires !vm.flightRecorder