Added a test

compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/GetA.kt

@@ -0,0 +1,10 @@
+// FILE: KotlinFile.kt
+fun foo(javaClass: JavaClass) {
+    javaClass.a
+    javaClass.<!UNRESOLVED_REFERENCE!>A<!>
+}
+
+// FILE: JavaClass.java
+public class JavaClass {
+    public int getA() { return 1; }
+}

compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/GetA.txt

@@ -0,0 +1,11 @@
+package
+
+internal fun foo(/*0*/ javaClass: JavaClass): kotlin.Unit
+
+public open class JavaClass {
+    public constructor JavaClass()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getA(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}