Test data split between compiledJava tests and compiledKotlin tests

Basically, this commit splits test data from the from java-txt-kt to two pairs java-txt and kt-txt.
This commit leads to some duplication in test data.
This is temporary: in the platform types branch the test data for LoadJava tests will be changed dramatically, so duplication will go away

compiler/testData/loadJava/compiledJava/kotlinSignature/propagation/parameter/ReadOnlyToMutable.txt

@@ -0,0 +1,14 @@
+package test
+
+public trait ReadOnlyToMutable {
+
+    public trait Sub : test.ReadOnlyToMutable.Super {
+        public abstract override /*1*/ /*fake_override*/ fun dummy(): kotlin.Unit
+        public abstract override /*1*/ fun foo(/*0*/ p: kotlin.List<kotlin.String>): kotlin.Unit
+    }
+
+    public trait Super {
+        public abstract fun dummy(): kotlin.Unit
+        public abstract fun foo(/*0*/ p: kotlin.List<kotlin.String>): kotlin.Unit
+    }
+}