Add diagnostic output IPSupport.printPlatformSupport(System.out) to tests in

java/net/httpclient/http2:

java/net/httpclient/http2/BasicTest.java
java/net/httpclient/http2/HpackCircularBufferDriver.java
java/net/httpclient/http2/HpackEncoderDriver.java
java/net/httpclient/http2/TrailingHeadersTest.java
java/net/httpclient/http2/BadHeadersTest.java
java/net/httpclient/http2/TLSConnection.java
java/net/httpclient/http2/IdlePooledConnectionTest.java
java/net/httpclient/http2/NoBodyTest.java
java/net/httpclient/http2/HpackBinaryTestDriver.java
java/net/httpclient/http2/ErrorTest.java
java/net/httpclient/http2/RedirectTest.java
java/net/httpclient/http2/FixedThreadPoolTest.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/TestHelper.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/BuffersTestingKit.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/EncoderTest.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/HuffmanTest.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/DecoderTest.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/BinaryPrimitivesTest.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/CircularBufferTest.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/HeaderTableTest.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/SpecHelper.java
java/net/httpclient/http2/java.net.http/jdk/internal/net/http/hpack/SimpleHeaderTableTest.java
java/net/httpclient/http2/Timeout.java
java/net/httpclient/http2/ConnectionReuseTest.java
java/net/httpclient/http2/HpackHuffmanDriver.java
java/net/httpclient/http2/H2GoAwayTest.java
java/net/httpclient/http2/PushPromiseContinuation.java
java/net/httpclient/http2/UserInfoTest.java
java/net/httpclient/http2/StreamFlowControlTest.java
java/net/httpclient/http2/ProxyTest2.java
java/net/httpclient/http2/ConnectionFlowControlTest.java
java/net/httpclient/http2/SimpleGet.java
java/net/httpclient/http2/BadPushPromiseTest.java
java/net/httpclient/http2/HpackDecoderDriver.java
java/net/httpclient/http2/ServerPushWithDiffTypes.java
java/net/httpclient/http2/HpackTestHelper.java
java/net/httpclient/http2/ServerPush.java
java/net/httpclient/http2/ImplicitPushCancel.java
java/net/httpclient/http2/PostPutTest.java
java/net/httpclient/http2/HpackHeaderTableDriver.java
java/net/httpclient/http2/ContinuationFrameTest.java

java/net/httpclient/http3:

java/net/httpclient/http3/H3MalformedResponseTest.java
java/net/httpclient/http3/H3PushCancel.java
java/net/httpclient/http3/PeerUniStreamDispatcherTest.java
java/net/httpclient/http3/H3ServerPush.java
java/net/httpclient/http3/H3ProxyTest.java
java/net/httpclient/http3/H3Timeout.java
java/net/httpclient/http3/H3ConcurrentPush.java
java/net/httpclient/http3/H3UserInfoTest.java
java/net/httpclient/http3/HTTP3NoBodyTest.java
java/net/httpclient/http3/H3HeaderSizeLimitTest.java
java/net/httpclient/http3/FramesDecoderTest.java
java/net/httpclient/http3/H3SimplePost.java
java/net/httpclient/http3/H3ServerPushCancel.java
java/net/httpclient/http3/H3RequestRejectedTest.java
java/net/httpclient/http3/H3StopSendingTest.java
java/net/httpclient/http3/H3ConnectionPoolTest.java
java/net/httpclient/http3/H3BasicTest.java
java/net/httpclient/http3/H3FixedThreadPoolTest.java
java/net/httpclient/http3/H3HeadersEncoding.java
java/net/httpclient/http3/H3MemoryHandlingTest.java
java/net/httpclient/http3/H3DataLimitsTest.java
java/net/httpclient/http3/H3MaxInitialTimeoutTest.java
java/net/httpclient/http3/H3ImplicitPushCancel.java
java/net/httpclient/http3/PostHTTP3Test.java
java/net/httpclient/http3/H3ServerPushWithDiffTypes.java
java/net/httpclient/http3/StreamLimitTest.java
java/net/httpclient/http3/H3BadHeadersTest.java
java/net/httpclient/http3/H3SimpleGet.java
java/net/httpclient/http3/H3InsertionsLimitTest.java
java/net/httpclient/http3/H3MultipleConnectionsToSameHost.java
java/net/httpclient/http3/H3SimpleTest.java
java/net/httpclient/http3/H3GoAwayTest.java
java/net/httpclient/http3/StopSendingTest.java
java/net/httpclient/http3/H3ServerPushTest.java
java/net/httpclient/http3/Http3ExpectContinueTest.java
java/net/httpclient/http3/H3ErrorHandlingTest.java
java/net/httpclient/http3/H3UnsupportedSSLParametersTest.java
java/net/httpclient/http3/H3RedirectTest.java
java/net/httpclient/http3/BadCipherSuiteErrorTest.java
java/net/httpclient/http3/H3StreamLimitReachedTest.java
java/net/httpclient/http3/H3QuicTLSConnection.java
java/net/httpclient/http3/GetHTTP3Test.java