FIR: rename HIDDEN to INVISIBLE_REFERENCE

Some of them should be INVISIBLE_MEMBER though

compiler/testData/diagnostics/tests/imports/CheckJavaVisibility2.fir.kt

@@ -22,24 +22,24 @@ import j.JavaProtected
 import j.JavaPackageLocal
 
 class A {
-    val p1 = JavaPackageLocal.<!HIDDEN!>javaPPackage<!>
-    val p2 = JavaProtected.<!HIDDEN!>javaPProtectedStatic<!>
-    val p3 = JavaProtected().<!HIDDEN!>javaPProtectedPackage<!>
+    val p1 = JavaPackageLocal.<!INVISIBLE_REFERENCE!>javaPPackage<!>
+    val p2 = JavaProtected.<!INVISIBLE_REFERENCE!>javaPProtectedStatic<!>
+    val p3 = JavaProtected().<!INVISIBLE_REFERENCE!>javaPProtectedPackage<!>
 
     fun test() {
-        JavaProtected.<!HIDDEN!>javaMProtectedStatic<!>()
-        JavaPackageLocal.<!HIDDEN!>javaMPackage<!>()
+        JavaProtected.<!INVISIBLE_REFERENCE!>javaMProtectedStatic<!>()
+        JavaPackageLocal.<!INVISIBLE_REFERENCE!>javaMPackage<!>()
     }
 }
 
 class B : JavaProtected() {
-    val p1 = JavaPackageLocal.<!HIDDEN!>javaPPackage<!>
+    val p1 = JavaPackageLocal.<!INVISIBLE_REFERENCE!>javaPPackage<!>
     val p2 = JavaProtected.javaPProtectedStatic
     val p3 = javaPProtectedPackage
 
     fun test() {
         JavaProtected.javaMProtectedStatic()
-        JavaPackageLocal.<!HIDDEN!>javaMPackage<!>()
+        JavaPackageLocal.<!INVISIBLE_REFERENCE!>javaMPackage<!>()
     }
 }
 

compiler/testData/diagnostics/tests/imports/ImportPrivateMember.fir.kt

@@ -29,7 +29,7 @@ private object TopLevelObject {
 }
 
 fun testAccess() {
-    <!HIDDEN!>NestedClass<!>()
+    <!INVISIBLE_REFERENCE!>NestedClass<!>()
     E1
     InNested()
     NestedEntry

compiler/testData/diagnostics/tests/imports/InaccessiblePrivateClass.fir.kt

@@ -15,4 +15,4 @@ package p1
 import p2.*
 
 val <!EXPOSED_PROPERTY_TYPE!>x<!>: X = <!INITIALIZER_TYPE_MISMATCH!>X()<!>
-val <!EXPOSED_PROPERTY_TYPE!>y<!>: Y = <!HIDDEN!>Y<!>()
+val <!EXPOSED_PROPERTY_TYPE!>y<!>: Y = <!INVISIBLE_REFERENCE!>Y<!>()

compiler/testData/diagnostics/tests/imports/PackageLocalClassReferencedError.fir.kt

@@ -8,4 +8,4 @@ package a
 
 import pack1.*
 
-private class X : <!HIDDEN!>SomeClass<!>()
+private class X : <!INVISIBLE_REFERENCE!>SomeClass<!>()

compiler/testData/diagnostics/tests/imports/PrivateClassReferencedError.fir.kt

@@ -11,4 +11,4 @@ package a
 
 import pack1.SomeClass.*
 
-private class X : <!EXPOSED_SUPER_CLASS, HIDDEN!>N<!>()
+private class X : <!EXPOSED_SUPER_CLASS, INVISIBLE_REFERENCE!>N<!>()

compiler/testData/diagnostics/tests/imports/invisibleFakeReferenceInImport.fir.kt

@@ -3,7 +3,7 @@
 import B.foo
 
 fun test() {
-    <!HIDDEN!>foo<!>
+    <!INVISIBLE_REFERENCE!>foo<!>
 }
 
 // FILE: B.kt