[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/smartSet.kt

@@ -0,0 +1,14 @@
+import java.util.AbstractSet
+
+class SmartSet<T> : AbstractSet<T>() {
+    override var size: Int = 0
+    override fun iterator(): MutableIterator<T> = TODO()
+    override fun add(element: T): Boolean = true
+    override fun clear() {}
+    override fun contains(element: T): Boolean = false
+}
+
+fun foo(x: Any) {
+    val s = SmartSet<Any>()
+    s.add(x)
+}