[FIR-TEST] Move analysis tests to separate module

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

@@ -0,0 +1,9 @@
+fun <T> materialize(): T = throw Exception()
+
+interface A
+
+fun takeA(a: A) {}
+
+fun test() {
+    takeA(if(true) materialize() else materialize())
+}