KT-10631 Consider creating a synthetic property even when the setter returns 'this'

#KT-10631 Fixed

idea/idea-completion/testData/basic/multifile/SyntheticExtensionNonVoidSetter/SyntheticExtensionNonVoidSetter.dependency.java

@@ -0,0 +1,5 @@
+interface JavaClass{
+    public int getSomething();
+
+    public JavaClass setSomething(int value);
+}

idea/idea-completion/testData/basic/multifile/SyntheticExtensionNonVoidSetter/SyntheticExtensionNonVoidSetter.kt

@@ -0,0 +1,7 @@
+fun foo(javaClass: JavaClass) {
+    javaClass.<caret>
+}
+
+// EXIST: { lookupString: "something", attributes: "bold" }
+// EXIST: { lookupString: "setSomething", attributes: "bold" }
+// ABSENT: getSomething