[FE Test] Move FIR dumps for LoadCompiledKotlin tests close to original testdata

compiler/testData/loadJava/compiledKotlin/prop/ExtValIntListQOfIntInClass.fir.txt

@@ -0,0 +1,7 @@
+public final class ExtValInClass : R|kotlin/Any| {
+    public final val R|kotlin/Int|.asas: R|java/util/List<kotlin/Int>?|
+        public get(): R|java/util/List<kotlin/Int>?|
+
+    public constructor(): R|test/ExtValInClass|
+
+}