private and override are no more compatible

compiler/frontend/src/org/jetbrains/kotlin/resolve/ModifiersChecker.kt

@@ -115,6 +115,9 @@ public object ModifierCheckerCore {
         result += incompatibilityRegister(CONST_KEYWORD, ABSTRACT_KEYWORD)
         result += incompatibilityRegister(CONST_KEYWORD, OPEN_KEYWORD)
         result += incompatibilityRegister(CONST_KEYWORD, OVERRIDE_KEYWORD)
+
+        // private is incompatible with override
+        result += incompatibilityRegister(PRIVATE_KEYWORD, OVERRIDE_KEYWORD)
         return result
     }
 

compiler/testData/cli/jvm/multipleTextRangesInDiagnosticsOrder.out

@@ -1,10 +1,13 @@
+compiler/testData/cli/jvm/multipleTextRangesInDiagnosticsOrder.kt:6:5: error: modifier 'override' is incompatible with 'private'
+    override protected private val c: Int
+    ^
 compiler/testData/cli/jvm/multipleTextRangesInDiagnosticsOrder.kt:6:14: error: cannot weaken access privilege 'public' for 'c' in 'A'
     override protected private val c: Int
              ^
 compiler/testData/cli/jvm/multipleTextRangesInDiagnosticsOrder.kt:6:14: error: modifier 'protected' is incompatible with 'private'
     override protected private val c: Int
              ^
-compiler/testData/cli/jvm/multipleTextRangesInDiagnosticsOrder.kt:6:24: error: modifier 'private' is incompatible with 'protected'
+compiler/testData/cli/jvm/multipleTextRangesInDiagnosticsOrder.kt:6:24: error: modifier 'private' is incompatible with 'override'
     override protected private val c: Int
                        ^
 COMPILATION_ERROR

compiler/testData/diagnostics/tests/scopes/kt151.kt

@@ -32,7 +32,7 @@ class E : C(), T {
 }
 
 class F : C(), T {
-    <!CANNOT_WEAKEN_ACCESS_PRIVILEGE!>private<!> override fun foo() {}
+    <!CANNOT_WEAKEN_ACCESS_PRIVILEGE, INCOMPATIBLE_MODIFIERS!>private<!> <!INCOMPATIBLE_MODIFIERS!>override<!> fun foo() {}
 }
 
 class G : C(), T {