[FIR] Introduce extended checkers for inspection-like diagnostics

compiler/fir/analysis-tests/testData/resolve/extendedCheckers/RedundantVisibilityModifierChecker.kt

@@ -1,52 +0,0 @@
-<!REDUNDANT_VISIBILITY_MODIFIER!>public<!> class C {
-    <!REDUNDANT_VISIBILITY_MODIFIER!>public<!> val foo: Int = 0
-
-    <!REDUNDANT_VISIBILITY_MODIFIER!>public<!> fun bar() {}
-
-}
-
-open class D {
-    protected open fun willRemainProtected() {
-    }
-
-    protected open fun willBecomePublic() {
-    }
-}
-
-class E : D() {
-    <!REDUNDANT_VISIBILITY_MODIFIER!>protected<!> override fun willRemainProtected() {
-    }
-
-    public override fun willBecomePublic() {
-    }
-}
-
-enum class F <!REDUNDANT_VISIBILITY_MODIFIER!>private<!> constructor(val x: Int) {
-    FIRST(42)
-}
-
-sealed class G constructor(val y: Int) {
-    <!REDUNDANT_VISIBILITY_MODIFIER!>private<!> constructor(): this(42)
-
-    object H : G()
-}
-
-interface I {
-    fun bar()
-}
-
-fun f() {
-    val i = object : I {
-        <!REDUNDANT_VISIBILITY_MODIFIER!>internal<!> var foo = 0
-        override fun bar() {}
-    }
-    i.foo = 1
-
-    class LocalClass {
-        <!REDUNDANT_VISIBILITY_MODIFIER!>internal<!> var foo = 0
-    }
-    LocalClass().foo = 1
-    <!REDUNDANT_VISIBILITY_MODIFIER!>public<!> var baz = 0
-}
-
-<!REDUNDANT_VISIBILITY_MODIFIER!>public<!> var baz = 0