Surround with try/catch should generate more Kotlin-style code (KT-5435)

#KT-5435 Fixed

idea/testData/codeInsight/surroundWith/if/moveDeclarationsOut/var/defaultValue/boolean.kt.after

@@ -1,7 +1,6 @@
 fun foo() {
-    var a: Boolean = false
-    if (<caret>) {
-        a = true
+    var a: Boolean = if (<caret>) {
+        true
     }
     a = true
 }

idea/testData/codeInsight/surroundWith/if/moveDeclarationsOut/var/defaultValue/nullable.kt.after

@@ -1,7 +1,6 @@
 fun foo() {
-    var a: String? = null
-    if (<caret>) {
-        a = "aaa"
+    var a: String? = if (<caret>) {
+        "aaa"
     }
     a = "bbb"
 }

idea/testData/codeInsight/surroundWith/if/moveDeclarationsOut/var/defaultValue/primitiveNumbers.kt.after

@@ -5,15 +5,14 @@ fun foo() {
     var d: Long = 0
     var e: Short = 0
     var f: Double = 0.0
-    var g: Float = 0.0f
-    if () {
+    var g: Float = if () {
         a = 1
         b = 1
         c = 1
         d = 1
         e = 1
         f = 1
-        g = 1
+        1
     }
     a = 2
     b = 2