Dsl highlighting: support highlighting properties

Fix properties not being highlighted
Fix test infrastructure to verify actual output of highlighting visitors

idea/testData/dslHighlighter/propertyAccess.kt

@@ -0,0 +1,44 @@
+package p
+
+@DslMarker
+annotation class A
+
+@DslMarker
+annotation class B
+
+@A
+val AC.p1: Int
+    get() = 3
+
+@A
+var p2: Int = 5
+
+@B
+val BC.p3
+    get() = 6
+
+
+@B
+var BC.p7
+    get() = 3
+    set(i) {}
+
+@A
+class AC
+
+@B
+class BC
+
+fun test() {
+    p2 // 4
+    p2 = 6 // 4
+
+    with(AC()) {
+        p1 // 4
+    }
+    with(BC()) {
+        p3 // 1
+        p7 // 1
+        p7 = 3 // 1
+    }
+}