KNPE fixed in data class checker together with some ID warnings #KT-9296 Fixed #EA-73584 Fixed

compiler/testData/diagnostics/tests/dataClasses/dataClassNoName.kt

@@ -0,0 +1,9 @@
+// See EA-73584
+data class<!SYNTAX!><!> {
+
+}
+
+// See KT-9296
+<!WRONG_MODIFIER_TARGET!>data<!> interface<!SYNTAX!><!> {
+
+}