[KLIB][tests] Keep "klib evolution" test data under "testData/klib/" dir

compiler/testData/klib/evolution/addOrRemoveInitBlock.kt

@@ -0,0 +1,49 @@
+// MODULE: lib
+// FILE: A.kt
+// VERSION: 1
+
+class X {
+    var x = 17
+    init {
+        x = 19
+    }
+    init {
+        x = 23
+    }
+    init {
+        x = 29
+    }
+    var y = 31
+}
+
+// FILE: B.kt
+// VERSION: 2
+
+class X {
+    init {
+        // Empty
+    }
+    var x = 17
+    var y = 31
+    init {
+        x = 37
+        y = 41
+    }
+}
+
+// MODULE: mainLib(lib)
+// FILE: mainLib.kt
+
+fun lib(): String {
+    val x = X()
+    return when {
+        x.x != 37 -> "fail 1"
+        x.y != 41 -> "fail 2"
+        else -> "OK"
+    }
+}
+
+// MODULE: main(mainLib)
+// FILE: main.kt
+fun box(): String = lib()
+