Change parsing of statements starting with annotations

If a block statement starts with annotations treat them as they
belong to node of the statement rather than to the closest prefix expression

 #KT-10210 Fixed

compiler/testData/psi/annotation/at/danglingBlockLevelAnnotations.kt

@@ -0,0 +1,14 @@
+class C {
+    fun test() {
+        @Ann
+    }
+
+    fun foo() {
+        class Local {
+            @Ann
+        }
+    }
+    @Ann
+}
+
+@Ann