FIR IDE: move analysis api fir testdata to the analysis directory

analysis/analysis-api/testData/components/overridenDeclarations/sequenceOfOverrides.kt

@@ -0,0 +1,29 @@
+// FILE: main.kt
+class A : B() {
+    override fun foo<caret>(x: Int) {}
+}
+
+// FILE: B.kt
+open class B : C() {
+    override fun foo(x: Int) {}
+}
+
+// FILE: C.kt
+open class C : D() {
+    override fun foo(x: Int) {}
+}
+
+// FILE: D.kt
+open class D {
+    open fun foo(x: Int) {}
+}
+
+
+// RESULT
+// ALL:
+// B.foo(x: Int): Unit
+// C.foo(x: Int): Unit
+// D.foo(x: Int): Unit
+
+// DIRECT:
+// B.foo(x: Int): Unit