Make isFromJava check work for SAM adapter extension descriptors (KT-21538)

Consider all callable descriptor in JavaClassDescriptor to be from Java.

This is used to check if smart step into should be intercepted by Kotlin
handler or delegated to Java.

 #KT-21538 Fixed

idea/testData/debugger/tinyApp/src/forTests/MyJavaClass.java

@@ -49,4 +49,9 @@ public class MyJavaClass {
     public static class RawADerived extends RawA {
 
     }
+
+    // Method with sam conversion for step into test
+    public void other(Runnable runnable) {
+        runnable.run();
+    }
 }

idea/testData/debugger/tinyApp/src/stepping/stepIntoAndSmartStepInto/javaSamFunction.kt

@@ -0,0 +1,9 @@
+package javaSamFunction
+
+import forTests.MyJavaClass
+
+fun main(args: Array<String>) {
+    val klass = MyJavaClass()
+    //Breakpoint!
+    klass.other { /* do nothing*/ }
+}

idea/testData/debugger/tinyApp/src/stepping/stepIntoAndSmartStepInto/javaSamFunction.out

@@ -0,0 +1,9 @@
+LineBreakpoint created at javaSamFunction.kt:8
+Run Java
+Connected to the target VM
+javaSamFunction.kt:8
+MyJavaClass.java:55
+resuming javaSamFunction.kt:8
+Disconnected from the target VM
+
+Process finished with exit code 0