Fix exception happening while parsing an incorrect file

^KTIJ-21546 Fixed

compiler/testData/psi/diagnosticTags_ERR.kt

@@ -0,0 +1,40 @@
+// !LANGUAGE: -SuspendFunctionAsSupertype
+typealias Action = () -> Unit
+
+interface SAM {
+    fun run()
+}
+
+typealias Test1 = suspend () -> Unit
+typealias Test2 = suspend Int.() -> Unit
+typealias Test3 = <!WRONG_MODIFIER_TARGET!>suspend<!> Function0<Unit>
+typealias Test4 = <!WRONG_MODIFIER_TARGET!>suspend<!> Action
+typealias Test5 = List<suspend () -> Unit>
+typealias Test6 = <!WRONG_MODIFIER_TARGET!>suspend<!> List<() -> Unit>
+typealias Test7 = <!WRONG_MODIFIER_TARGET!>suspend<!> SAM
+typealias Test8 = <!WRONG_MODIFIER_TARGET!>suspend<!> kotlin.coroutines.SuspendFunction0<Unit>
+typealias Test9 = suspend (() -> Unit) -> Unit
+typealias Test10 = suspend (suspend () -> Unit) -> Unit
+typealias Test11 = suspend () -> (suspend () -> Unit)
+typealias Test12 = suspend (suspend (() -> Unit)) -> Unit
+typealias Test13 = @A() suspend () -> Unit
+typealias Test14 = @A suspend () -> Unit
+typealias Test15 = (@A() suspend () -> Unit)?
+typealias Test16 = (@A suspend () -> Unit)?
+typealias Test17 = @A suspend RS.() -> Unit
+typealias Test18 = (suspend () -> Unit)?
+typealias Test19 = (@A(<!ANNOTATION_ARGUMENT_MUST_BE_CONST!>{ val x: <!WRONG_MODIFIER_TARGET!>suspend<!> String? = null; "" }()<!>) suspend () -> Unit)?
+typealias Test20 = (@A(<!ANNOTATION_ARGUMENT_MUST_BE_CONST!>"".let { val x: <!WRONG_MODIFIER_TARGET!>suspend<!> String? = null; it }<!>) suspend () -> Unit)?
+
+interface Supertype1 : suspend () -> Unit {
+
+}
+
+interface Supertype2 : <!SUPERTYPE_IS_EXTENSION_FUNCTION_TYPE!>suspend String.() -> Unit<!> {
+
+}
+
+@Target(AnnotationTarget.TYPE)
+annotation class A(val value: String = "")
+
+interface RS