Migrate testdata to new lambda syntax

idea/testData/unifier/equivalence/declarations/localCallables/lambdas/multipleParamsRuntime.kt

@@ -1,23 +1,23 @@
 fun foo(f: (Int) -> Unit) {
-    <selection>{ (n: Int, s: String) ->
+    <selection>{ n: Int, s: String ->
         val a = n + 1
         println(s)
         f(a)
     }</selection>
 
-    { (s: String, n: Int) ->
+    { s: String, n: Int ->
         val a = n + 1
         println(s)
         f(a)
     }
 
-    { (m: Int, r: String) ->
+    { m: Int, r: String ->
         val b = m + 1
         println(r)
         f(b)
     }
 
-    val g: (Int, String) -> Unit = { (a, b) ->
+    val g: (Int, String) -> Unit = { a, b ->
         val m = a + 1
         println(b)
         f(m)

idea/testData/unifier/equivalence/declarations/localCallables/lambdas/multipleParamsRuntime.kt.match

@@ -1,16 +1,16 @@
-{ (n: Int, s: String) ->
+{ n: Int, s: String ->
         val a = n + 1
         println(s)
         f(a)
     }
 
-{ (m: Int, r: String) ->
+{ m: Int, r: String ->
         val b = m + 1
         println(r)
         f(b)
     }
 
-{ (a, b) ->
+{ a, b ->
         val m = a + 1
         println(b)
         f(m)

idea/testData/unifier/equivalence/declarations/localCallables/lambdas/singleParam.kt

@@ -1,5 +1,5 @@
 fun foo(f: (Int) -> Unit) {
-    <selection>{ (n: Int) ->
+    <selection>{ n: Int ->
         val a = n + 1
         f(a)
     }</selection>
@@ -9,7 +9,7 @@ fun foo(f: (Int) -> Unit) {
         f(a)
     }
 
-    { (m: Int) ->
+    { m: Int ->
         val b = m + 1
         f(b)
     }

idea/testData/unifier/equivalence/declarations/localCallables/lambdas/singleParam.kt.match

@@ -1,4 +1,4 @@
-{ (n: Int) ->
+{ n: Int ->
         val a = n + 1
         f(a)
     }
@@ -8,7 +8,7 @@
         f(a)
     }
 
-{ (m: Int) ->
+{ m: Int ->
         val b = m + 1
         f(b)
     }

idea/testData/unifier/equivalence/types/function2.kt

@@ -1,11 +1,11 @@
-val a: Function2<Any, Int, String> = { (a, b) -> "" }
-val b: kotlin.Function2<kotlin.Any, kotlin.Int, kotlin.String> = { (a, b) -> "" }
-val c: <selection>(Any, Int) -> String</selection> = { (a, b) -> "" }
-val d: (a: Any, n: Int) -> kotlin.String = { (a, b) -> "" }
+val a: Function2<Any, Int, String> = { a, b -> "" }
+val b: kotlin.Function2<kotlin.Any, kotlin.Int, kotlin.String> = { a, b -> "" }
+val c: <selection>(Any, Int) -> String</selection> = { a, b -> "" }
+val d: (a: Any, n: Int) -> kotlin.String = { a, b -> "" }
 val e: (String) -> Int = { 0 }
 val f: () -> Int = { 0 }
 val g: Any.(Int) -> String = { "" }
 val h: Int.(Any) -> String = { "" }
-val i: ExtensionFunction2<Any, Any, Int, String> = { (a, b) -> "" }
-val j: (t: Any, u: Int) -> kotlin.String = {(a, b) ->  "" }
+val i: ExtensionFunction2<Any, Any, Int, String> = { a, b -> "" }
+val j: (t: Any, u: Int) -> kotlin.String = { a, b ->  "" }
 val k: ExtensionFunction1<Any, Int, String> = { "" }