Diagnostics improvements for corner cases

(class/package qualifier in non-qualifier position).

compiler/testData/diagnostics/tests/classObjects/ClassObjects.kt

@@ -36,7 +36,7 @@ val a = A.x
 val c = B.<!UNRESOLVED_REFERENCE!>x<!>
 val d = b.<!UNRESOLVED_REFERENCE!>x<!>
 
-val s = <!INVISIBLE_MEMBER, FUNCTION_CALL_EXPECTED!>System<!>  // error
+val s = <!NO_COMPANION_OBJECT!>System<!>  // error
 fun test() {
   System.out.println()
   java.lang.System.out.println()

compiler/testData/diagnostics/tests/classObjects/ClassObjects.txt

@@ -4,7 +4,7 @@ package Jet86 {
     public val a: kotlin.Int = 1
     public val c: [ERROR : Type for B.x]
     public val d: [ERROR : Type for b.x]
-    public val s: java.lang.System
+    public val s: [ERROR : Type for System]
     public fun test(): kotlin.Unit
 
     public final class A {

compiler/testData/diagnostics/tests/classObjects/InnerClassAccessThroughClassObject.kt

@@ -28,7 +28,7 @@ object O {
 fun f() {
     A.c
     A.hashCode()
-    A().<!NESTED_CLASS_ACCESSED_VIA_INSTANCE_REFERENCE, FUNCTION_CALL_EXPECTED!>Nested<!>
+    A().<!NO_COMPANION_OBJECT, NESTED_CLASS_ACCESSED_VIA_INSTANCE_REFERENCE!>Nested<!>
     A.Nested()
     A().Inner()
     A.Companion.<!UNRESOLVED_REFERENCE!>Nested<!>

compiler/testData/diagnostics/tests/classObjects/InnerClassAccessThroughEnum.kt

@@ -32,7 +32,7 @@ enum class C {
 }
 
 fun f() {
-    C.E1.<!NESTED_CLASS_ACCESSED_VIA_INSTANCE_REFERENCE, FUNCTION_CALL_EXPECTED!>A<!>
+    C.E1.<!UNRESOLVED_REFERENCE!>A<!>
     C.E1.<!NESTED_CLASS_ACCESSED_VIA_INSTANCE_REFERENCE!>A<!>()
     C.E2.B()