[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/definitelyNotNullAmbiguity.kt

@@ -0,0 +1,21 @@
+// FILE: KtVisitor.java
+
+public class KtVisitor<R, D> {}
+
+// FILE: A.java
+
+public interface A {
+    public <R, D> R accept(@org.jetbrains.annotations.NotNull KtVisitor<R, D> visitor, D data)
+}
+
+// FILE: B.kt
+
+interface B : A {
+    override fun <R, D> accept(visitor: KtVisitor<R, D>, data: D): R
+}
+
+// FILE: main.kt
+
+fun test(visitor: KtVisitor<String, Unit>, element: B) {
+    element.accept(visitor, Unit)
+}