Rename test data folder according to the new test naming convention.

compiler/testData/loadKotlin/classFun/FunDelegationToTraitImpl.txt

@@ -0,0 +1,9 @@
+namespace test
+
+internal abstract trait test.A : jet.Any {
+    internal open fun f(): jet.String
+}
+internal final class test.B : test.A {
+    public final /*constructor*/ fun <init>(): test.B
+    internal open override /*1*/ fun f(): jet.String
+}