Support for checking loaded descriptors agains an expected txt file

compiler/testData/lazyResolve/diagnostics/ImportResolutionOrder.txt

@@ -0,0 +1,26 @@
+namespace <root>
+
+// <namespace name="a">
+namespace a
+
+internal final val x: b.X
+// </namespace name="a">
+// <namespace name="b">
+namespace b
+
+internal final class b.X : jet.Any {
+    public final /*constructor*/ fun <init>(): b.X
+}
+// </namespace name="b">
+// <namespace name="c">
+namespace c
+
+internal final val x: d.X
+// </namespace name="c">
+// <namespace name="d">
+namespace d
+
+internal final class d.X : jet.Any {
+    public final /*constructor*/ fun <init>(): d.X
+}
+// </namespace name="d">