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

compiler/testData/loadJava/compiledKotlin/fromLoadJava/FieldAsVar.fir.txt

@@ -0,0 +1,8 @@
+public final class FieldAsVar : R|kotlin/Any| {
+    public final var f: R|kotlin/Int|
+        public get(): R|kotlin/Int|
+        public set(value: R|kotlin/Int|): R|kotlin/Unit|
+
+    public constructor(): R|test/FieldAsVar|
+
+}