split ConflictingOverloads.jet test, add property overload conflict test

compiler/testData/diagnostics/tests/overload/ConstructorVsFunOverload.jet

@@ -0,0 +1,30 @@
+// constructor vs. fun overload
+
+package constructorVsFun
+
+class <!CONFLICTING_OVERLOADS!>a()<!> { }
+
+<!CONFLICTING_OVERLOADS!>fun a()<!> = 1
+
+class Tram {
+    <!CONFLICTING_OVERLOADS!>fun f()<!> { }
+
+    class <!CONFLICTING_OVERLOADS!>f()<!> { }
+}
+
+class Yvayva {
+    class object {
+        <!CONFLICTING_OVERLOADS!>fun fghj()<!> { }
+
+        class <!CONFLICTING_OVERLOADS!>fghj()<!> { }
+    }
+}
+
+class Rtyu {
+    fun ololo() { }
+
+    class object {
+        class ololo() { }
+    }
+}
+