"Inapplicable operator modifier" and "Inapplicable infix modifier" are now errors

compiler/testData/codegen/box/defaultArguments/function/augmentedAssignment.kt

@@ -1,12 +0,0 @@
-var result = "Fail"
-
-class A
-
-operator fun A.plusAssign(a: A, s: String = "OK") {
-    result = s
-}
-
-fun box(): String {
-    A() += A()
-    return result
-}

compiler/testData/codegen/box/defaultArguments/function/augmentedAssignmentViaBinaryExpression.kt

@@ -1,14 +0,0 @@
-var result = "Fail"
-
-class A
-
-operator fun A.plus(a: A, s: String = "OK"): A {
-    result = s
-    return this
-}
-
-fun box(): String {
-    var a = A()
-    a += A()
-    return result
-}

compiler/testData/codegen/box/defaultArguments/function/binaryCall.kt

@@ -1,3 +0,0 @@
-infix fun Int.foo(o: String, k: String = "K") = o + k
-
-fun box() = 42 foo "O"

compiler/testData/codegen/box/defaultArguments/function/binaryExpression.kt

@@ -1,5 +0,0 @@
-class A
-
-operator fun A.plus(i: A, ok: String = "OK") = ok
-
-fun box() = A() + A()

compiler/testData/codegen/box/defaultArguments/function/contains.kt

@@ -1,5 +0,0 @@
-class A
-
-operator fun A.contains(i: A, actual: Boolean = true) = actual
-
-fun box() = if (A() in A()) "OK" else "Fail"