Smart completion to insert comma when in argument list

idea/testData/completion/handlers/smart/Comma1.kt

@@ -0,0 +1,7 @@
+fun foo(s: String){ }
+
+fun bar(sss: String) {
+    foo(<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma1.kt.after

@@ -0,0 +1,7 @@
+fun foo(s: String){ }
+
+fun bar(sss: String) {
+    foo(sss<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma2.kt

@@ -0,0 +1,7 @@
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma2.kt.after

@@ -0,0 +1,7 @@
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(sss, <caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma3.kt

@@ -0,0 +1,8 @@
+fun foo(s: String){ }
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma3.kt.after

@@ -0,0 +1,8 @@
+fun foo(s: String){ }
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(sss<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma4.kt

@@ -0,0 +1,8 @@
+fun foo(o: Any){ }
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma4.kt.after

@@ -0,0 +1,8 @@
+fun foo(o: Any){ }
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(sss<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma5.kt

@@ -0,0 +1,8 @@
+fun foo(o: Any, c: Char){ }
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(<caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma5.kt.after

@@ -0,0 +1,8 @@
+fun foo(o: Any, c: Char){ }
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(sss, <caret>)
+}
+
+//ELEMENT: sss

idea/testData/completion/handlers/smart/Comma6.kt

@@ -0,0 +1,9 @@
+fun foo(s: String, i: Int){ }
+
+fun bar() {
+    foo(<caret>)
+}
+
+fun getString(p: Int): String = ""
+
+//ELEMENT: getString

idea/testData/completion/handlers/smart/Comma6.kt.after

@@ -0,0 +1,9 @@
+fun foo(s: String, i: Int){ }
+
+fun bar() {
+    foo(getString(<caret>), )
+}
+
+fun getString(p: Int): String = ""
+
+//ELEMENT: getString

idea/testData/completion/handlers/smart/Comma7.kt

@@ -0,0 +1,9 @@
+fun foo(c: C, i: Int){ }
+
+class C {
+    fun bar() {
+        foo(<caret>)
+    }
+}
+
+//ELEMENT: this

idea/testData/completion/handlers/smart/Comma7.kt.after

@@ -0,0 +1,9 @@
+fun foo(c: C, i: Int){ }
+
+class C {
+    fun bar() {
+        foo(this, <caret>)
+    }
+}
+
+//ELEMENT: this

idea/testData/completion/handlers/smart/Comma8.kt

@@ -0,0 +1,9 @@
+trait Foo
+
+fun foo(f: Foo, i: Int){}
+
+fun bar() {
+    foo(<caret>)
+}
+
+//ELEMENT: object

idea/testData/completion/handlers/smart/Comma8.kt.after

@@ -0,0 +1,9 @@
+trait Foo
+
+fun foo(f: Foo, i: Int){}
+
+fun bar() {
+    foo(object: Foo {<caret>}, )
+}
+
+//ELEMENT: object

idea/testData/completion/handlers/smart/Comma9.kt

@@ -0,0 +1,12 @@
+enum class Foo {
+    X
+    Y
+}
+
+fun foo(f: Foo, i: Int){}
+
+fun bar(){
+    foo(<caret>)
+}
+
+// ELEMENT: Foo.X

idea/testData/completion/handlers/smart/Comma9.kt.after

@@ -0,0 +1,12 @@
+enum class Foo {
+    X
+    Y
+}
+
+fun foo(f: Foo, i: Int){}
+
+fun bar(){
+    foo(Foo.X, <caret>)
+}
+
+// ELEMENT: Foo.X

idea/testData/completion/handlers/smart/TabReplaceComma1.kt

@@ -0,0 +1,8 @@
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(<caret>a, b)
+}
+
+//ELEMENT: sss
+//CHAR: \t

idea/testData/completion/handlers/smart/TabReplaceComma1.kt.after

@@ -0,0 +1,8 @@
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(sss, <caret>b)
+}
+
+//ELEMENT: sss
+//CHAR: \t

idea/testData/completion/handlers/smart/TabReplaceComma2.kt

@@ -0,0 +1,8 @@
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(<caret>a,b)
+}
+
+//ELEMENT: sss
+//CHAR: \t

idea/testData/completion/handlers/smart/TabReplaceComma2.kt.after

@@ -0,0 +1,8 @@
+fun foo(s: String, i: Int){ }
+
+fun bar(sss: String) {
+    foo(sss, <caret>b)
+}
+
+//ELEMENT: sss
+//CHAR: \t