Checking "infix" modifier in completion and import popup

idea/idea-completion/testData/basic/common/AfterIntSeparatedWithComments.kt

@@ -1,4 +1,4 @@
-fun Int.func(s: String): Int{}
+infix fun Int.func(s: String): Int{}
 
 fun test() {
     val floor = "Floor"

idea/idea-completion/testData/basic/common/InfixCall.kt

@@ -1,18 +1,18 @@
 class C {
-    fun foo(){}
-    fun bar(p: Int) {}
+    fun foo(p: Int){}
+    infix fun bar(p: Int) {}
     fun zoo(p1: Int, p2: Int){}
     val prop: Int = 1
 }
 
-fun C.xxx() {}
-fun C.yyy(p: Int) {}
+fun C.xxx(p: Int) {}
+infix fun C.yyy(p: Int) {}
 fun C.zzz(p1: Int, p2: Int) {}
 val C.extensionProp: Int get() = 1
 
-fun <A, B> A.and(that: B): Pair<A, B> = Pair(this, that)
+infix fun <A, B> A.and(that: B): Pair<A, B> = Pair(this, that)
 
-fun String.ttt(p: Int) {}
+infix fun String.ttt(p: Int) {}
 
 fun f() {
     C() <caret>

idea/idea-completion/testData/basic/common/InfixCallNoSpecialLambdaArgumentItem.kt

@@ -1,6 +1,6 @@
 // checks that no special item "ext1 { String, Int -> ... }" created for infix call
-fun Int.ext1(handler: (String, Int) -> Unit){}
-fun Int.ext2(c: Char){}
+infix fun Int.ext1(handler: (String, Int) -> Unit){}
+infix fun Int.ext2(c: Char){}
 
 fun foo() {
     val pair = 1 ext<caret>

idea/idea-completion/testData/basic/multifile/NoGenericFunDuplication/NoGenericFunDuplication.dependency.kt

@@ -2,4 +2,4 @@ package dependency
 
 class MyPair<A, B>(public val first: A, public val second: B)
 
-public fun <A, B> A.pair(that: B): MyPair<A, B> = MyPair(this, that)
+infix fun <A, B> A.pair(that: B): MyPair<A, B> = MyPair(this, that)

idea/idea-completion/testData/basic/multifile/NotImportedInfixExtension/NotImportedInfixExtension.dependency.kt

@@ -2,8 +2,8 @@ package other
 
 import pack.C
 
-fun C.xxx() {}
-fun C.yyy(p: Int) {}
+fun C.xxx(p: Int) {}
+infix fun C.yyy(p: Int) {}
 fun C.zzz(p1: Int, p2: Int) {}
 val C.extensionProp: Int get() = 1