[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/multifile/simpleImport.kt

@@ -0,0 +1,25 @@
+// FILE: B.kt
+
+package b
+
+abstract class MyClass
+
+fun foo() {}
+
+fun I() {}
+interface I {}
+
+
+// FILE: A.kt
+
+package a
+import b.MyClass
+import b.foo
+import b.I
+
+class YourClass : MyClass()
+
+fun bar() {
+    foo()
+    I()
+}