Add surround with if

idea/testData/codeInsight/surroundWith/if/block.kt

@@ -0,0 +1,7 @@
+fun foo() {
+    val a: String? = null
+
+    <selection>if (a != null) {
+        a.length()
+    }</selection>
+}

idea/testData/codeInsight/surroundWith/if/block.kt.after

@@ -0,0 +1,9 @@
+fun foo() {
+    val a: String? = null
+
+    if (<caret>) {
+        if (a != null) {
+            a.length()
+        }
+    }
+}

idea/testData/codeInsight/surroundWith/if/severalStatements.kt

@@ -0,0 +1,4 @@
+fun foo() {
+    <selection>"".capitalize()
+    "".capitalize()</selection>
+}

idea/testData/codeInsight/surroundWith/if/severalStatements.kt.after

@@ -0,0 +1,6 @@
+fun foo() {
+    if (<caret>) {
+        "".capitalize()
+        "".capitalize()
+    }
+}

idea/testData/codeInsight/surroundWith/if/singleStatement.kt

@@ -0,0 +1,3 @@
+fun foo() {
+    <selection>"".capitalize()</selection>
+}

idea/testData/codeInsight/surroundWith/if/singleStatement.kt.after

@@ -0,0 +1,5 @@
+fun foo() {
+    if (<caret>) {
+        "".capitalize()
+    }
+}

idea/testData/codeInsight/surroundWith/if/singleStatementAtCaret.kt

@@ -0,0 +1,3 @@
+fun foo() {
+    "".capi<caret>talize()
+}

idea/testData/codeInsight/surroundWith/if/singleStatementAtCaret.kt.after

@@ -0,0 +1,5 @@
+fun foo() {
+    if (<caret>) {
+        "".capitalize()
+    }
+}

idea/testData/codeInsight/surroundWith/if/variable.kt

@@ -0,0 +1,5 @@
+fun foo() {
+    val a = ""
+
+    <caret>a
+}

idea/testData/codeInsight/surroundWith/if/variable.kt.after

@@ -0,0 +1,7 @@
+fun foo() {
+    val a = ""
+
+    if (<caret>) {
+        a
+    }
+}