Fix compiler debugger test for JDK 21

Changed debugger test to be compatible with JDK 21 by using
`Class.forName` instead of directly referencing the class which
is no allowed in JDK 21. The JDK exmaples use `Class.forName` for
other classes.

Fixes: 331276193 ( https://issuetracker.google.com/issues/331276193 )
Test: ./gradlew :compose:c:c-h:i-t:desktopTest
Change-Id: I98ae6e3ce3ef165975291ed2fb3f73a50b0a78a2 ( https://android-review.googlesource.com/q/I98ae6e3ce3ef165975291ed2fb3f73a50b0a78a2 )

Moved from: https://github.com/androidx/androidx/commit/d68597cd89510935bdb5568cdc5bbdfdb494a253
diff --git a/plugins/compose/compiler-hosted/integration-tests/src/desktopTest/kotlin/androidx/compose/compiler/plugins/kotlin/debug/AbstractDebuggerTest.kt b/plugins/compose/compiler-hosted/integration-tests/src/desktopTest/kotlin/androidx/compose/compiler/plugins/kotlin/debug/AbstractDebuggerTest.kt
index b91998b..a0011fe 100644
--- a/plugins/compose/compiler-hosted/integration-tests/src/desktopTest/kotlin/androidx/compose/compiler/plugins/kotlin/debug/AbstractDebuggerTest.kt
+++ b/plugins/compose/compiler-hosted/integration-tests/src/desktopTest/kotlin/androidx/compose/compiler/plugins/kotlin/debug/AbstractDebuggerTest.kt
@@ -25,6 +25,7 @@
 import com.intellij.util.SystemProperties
 import com.sun.jdi.AbsentInformationException
 import com.sun.jdi.VirtualMachine
+import com.sun.jdi.connect.AttachingConnector
 import com.sun.jdi.event.BreakpointEvent
 import com.sun.jdi.event.ClassPrepareEvent
 import com.sun.jdi.event.LocatableEvent
@@ -38,7 +39,6 @@
 import com.sun.jdi.request.MethodEntryRequest
 import com.sun.jdi.request.MethodExitRequest
 import com.sun.jdi.request.StepRequest
-import com.sun.tools.jdi.SocketAttachingConnector
 import java.io.File
 import java.net.URL
 import java.net.URLClassLoader
@@ -109,7 +109,8 @@
         private const val DEBUG_ADDRESS = "127.0.0.1"
 
         private fun attachDebugger(port: Int): VirtualMachine {
-            val connector = SocketAttachingConnector()
+            val c = Class.forName("com.sun.tools.jdi.SocketAttachingConnector")
+            val connector = c.getDeclaredConstructor().newInstance() as AttachingConnector
             return connector.attach(
                 connector.defaultArguments().apply {
                     getValue("port").setValue("$port")