[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/overrides/protobufExt.kt

@@ -0,0 +1,14 @@
+interface Ext<M : Message<M>, T>
+interface Message<M : Message<M>> {
+    fun <T> ext(e: Ext<M, T>): T
+}
+
+class MyMessage : Message<MyMessage>
+class MyExt : Ext<MyMessage, String>
+
+fun <M : Message<M>, T> Message<M>.extF(e: Ext<M, T>): T = ext(e)
+
+fun foo(m: MyMessage, e: MyExt) {
+    m.ext(e)
+    m.extF(e)
+}