set LOCAL visibility for local functions

(it can't be INHERIT)

compiler/testData/diagnostics/tests/declarationChecks/localFunctionNoInheritVisibility.kt

@@ -0,0 +1,16 @@
+package d
+
+class T {
+    fun baz() = 1
+}
+
+<!ILLEGAL_MODIFIER!>override<!> fun zzz() {}
+
+fun foo(t: T) {
+    <!ILLEGAL_MODIFIER!>override<!> fun T.baz() = 2
+
+    // was "Visibility is unknown yet exception"
+    t.baz()
+
+    zzz()
+}