enable infix quickfix in cleanup

idea/src/org/jetbrains/kotlin/idea/inspections/KotlinCleanupInspection.kt

@@ -92,6 +92,7 @@ public class KotlinCleanupInspection(): LocalInspectionTool(), CleanupLocalInspe
             Errors.NON_CONST_VAL_USED_IN_CONSTANT_EXPRESSION,
             Errors.BACKING_FIELD_SYNTAX_DEPRECATED,
             Errors.OPERATOR_MODIFIER_REQUIRED,
+            Errors.INFIX_MODIFIER_REQUIRED,
             Errors.CALLABLE_REFERENCE_TO_MEMBER_OR_EXTENSION_WITH_EMPTY_LHS,
             Errors.DEPRECATED_TYPE_PARAMETER_SYNTAX,
             Errors.MISPLACED_TYPE_PARAMETER_CONSTRAINTS

idea/testData/inspections/cleanup/cleanup.kt

@@ -59,6 +59,8 @@ class C {
     fun foo() {}
 
     fun bar() = ::foo
+
+    fun willBeInfix(i: Int) {}
 }
 
 fun typed<T>() {
@@ -66,3 +68,5 @@ fun typed<T>() {
 
 fun <T : Cloneable> withTypeParameters() where T : Comparable<T> {
 }
+
+C() willBeInfix 1

idea/testData/inspections/cleanup/cleanup.kt.after

@@ -58,6 +58,8 @@ class C {
     fun foo() {}
 
     fun bar() = C::foo
+
+    fun willBeInfix(i: Int) {}
 }
 
 fun <T> typed() {
@@ -65,3 +67,5 @@ fun <T> typed() {
 
 fun <T> withTypeParameters() where T : Cloneable, T : Comparable<T> {
 }
+
+C() willBeInfix 1