Fix tests: "infix modifier required" and "operator modifier required" errors

idea/testData/quickfix/createFromUsage/createFunction/binaryOperations/customOperationOnUserType.kt

@@ -1,4 +1,5 @@
 // "Create member function 'foo'" "true"
+// ERROR: infix modifier is required on 'foo' in 'A'
 
 class A<T>(val n: T)
 

idea/testData/quickfix/createFromUsage/createFunction/binaryOperations/customOperationOnUserType.kt.after

@@ -1,4 +1,5 @@
 // "Create member function 'foo'" "true"
+// ERROR: infix modifier is required on 'foo' in 'A'
 
 class A<T>(val n: T) {
     infix fun foo(t: T): A<T> {

idea/testData/quickfix/createFromUsage/createFunction/binaryOperations/quotedName.kt

@@ -1,4 +1,6 @@
 // "Create extension function '!u00A0'" "true"
+// ERROR: infix modifier is required on '!u00A0' in ''
+
 fun test() {
     val t: Int = 1 <caret>`!u00A0` 2
 }

idea/testData/quickfix/createFromUsage/createFunction/binaryOperations/quotedName.kt.after

@@ -1,4 +1,6 @@
 // "Create extension function '!u00A0'" "true"
+// ERROR: infix modifier is required on '!u00A0' in ''
+
 fun test() {
     val t: Int = 1 `!u00A0` 2
 }