Allow inferring property type from its getter

#KT-550 Fixed

compiler/testData/diagnostics/tests/properties/inferenceFromGetters/objectExpression.txt

@@ -0,0 +1,11 @@
+package
+
+public object Outer {
+    private constructor Outer()
+    private final var x: Outer.<get-x>.<no name provided>
+    private final var y: Outer.<get-x>.<no name provided>
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public final fun foo(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}