Smart completion: multiple arguments at once

idea/testData/completion/weighers/smart/MultipleArgsItem.kt

@@ -0,0 +1,8 @@
+fun foo(a: Int, b: String, c: String) {}
+
+fun bar(b: String, a: Int, c: String) {
+    foo(<caret>)
+}
+
+// ORDER: "a, b, c"
+// ORDER: a

idea/testData/completion/weighers/smart/NameSimilarity3.kt

@@ -14,10 +14,10 @@
  * limitations under the License.
  */
 
-fun f(fooBar1: String, fooBar2: String){}
+fun f(x: Int, fooBar1: String, fooBar2: String){}
 
 fun g(someBar0: String, someBar1: String, someBar2: String, fooBar: String, fooBar0: String, fooBar1: String, fooBar2: String) {
-    f(<caret>)
+    f(1, <caret>)
 }
 
 // ORDER: fooBar1, fooBar, fooBar0, fooBar2, someBar1, someBar0, someBar2