[AA] Refactoring: Move Java reference resolve tests to java subfolder

analysis/analysis-api/testData/referenceResolve/java/SyntheticProperty.kt

@@ -0,0 +1,19 @@
+// FILE: main.kt
+fun JavaClass.foo(javaClass: JavaClass) {
+    print(javaClass.<caret>something)
+    javaClass.<caret>something = 1
+    javaClass.<caret>something += 1
+    javaClass.<caret>something++
+    --javaClass.<caret>something
+
+    <caret>something++
+    (<caret>something)++
+    (<caret>something) = 1
+    (javaClass.<caret>something) = 1
+}
+
+// FILE: JavaClass.java
+public class JavaClass {
+    public int getSomething() { return 1; }
+    public void setSomething(int value) {}
+}