Replace fold/unfold intentions with a set of specialized ones

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/innerIfTransformed.kt

@@ -0,0 +1,21 @@
+fun test(n: Int): String {
+    var res: String
+
+    if (n == 1) {
+        <caret>if (3 > 2) {
+            println("***")
+            res = "one"
+        } else {
+            println("***")
+            res = "???"
+        }
+    } else if (n == 2) {
+        println("***")
+        res = "two"
+    } else {
+        println("***")
+        res = "too many"
+    }
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/innerIfTransformed.kt.after

@@ -0,0 +1,21 @@
+fun test(n: Int): String {
+    var res: String
+
+    if (n == 1) {
+        <caret>res = if (3 > 2) {
+            println("***")
+            "one"
+        } else {
+            println("***")
+            "???"
+        }
+    } else if (n == 2) {
+        println("***")
+        res = "two"
+    } else {
+        println("***")
+        res = "too many"
+    }
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIf.kt

@@ -0,0 +1,7 @@
+fun test(n: Int): String {
+    var res: String
+
+    <caret>if (n == 1) res = "one" else res = "two"
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIf.kt.after

@@ -0,0 +1,7 @@
+fun test(n: Int): String {
+    var res: String
+
+    <caret>res = if (n == 1) "one" else "two"
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithAugmentedAssignment.kt

@@ -0,0 +1,7 @@
+fun test(n: Int): String {
+    var res: String = "!"
+
+    <caret>if (n == 1) res += "one" else res += "two"
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithAugmentedAssignment.kt.after

@@ -0,0 +1,7 @@
+fun test(n: Int): String {
+    var res: String = "!"
+
+    <caret>res += if (n == 1) "one" else "two"
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithBlocks.kt

@@ -0,0 +1,13 @@
+fun test(n: Int): String {
+    var res: String
+
+    <caret>if (n == 1) {
+        println("***")
+        res = "one"
+    } else {
+        println("***")
+        res = "two"
+    }
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithBlocks.kt.after

@@ -0,0 +1,13 @@
+fun test(n: Int): String {
+    var res: String
+
+    <caret>res = if (n == 1) {
+        println("***")
+        "one"
+    } else {
+        println("***")
+        "two"
+    }
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithShadowedVar.kt

@@ -0,0 +1,16 @@
+// IS_APPLICABLE: false
+fun test(n: Int): String {
+    var res: String = ""
+
+    <caret>if (n == 1) {
+        println("***")
+        res = "one"
+    } else {
+        var res: String
+
+        println("***")
+        res = "two"
+    }
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithUnmatchedAssignmentOps.kt

@@ -0,0 +1,12 @@
+// IS_APPLICABLE: false
+fun test(s: String): Int {
+    var n: Int = 1;
+
+    <caret>if (s.equals("add")) {
+        n += 1
+    } else {
+        n -= 1
+    }
+
+    return n
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithUnmatchedAssignments.kt

@@ -0,0 +1,13 @@
+// IS_APPLICABLE: false
+fun test(n: Int): String {
+    var res: String = ""
+    var res2: String = ""
+
+    <caret>if (n == 1) {
+        res = "one"
+    } else {
+        res2 = "two"
+    }
+
+    return res + res2
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithoutElse.kt

@@ -0,0 +1,11 @@
+// IS_APPLICABLE: false
+fun test(n: Int): String {
+    var res: String = ""
+
+    <caret>if (n == 1) {
+        println("***")
+        res = "one"
+    }
+
+    return res
+}

idea/testData/codeInsight/codeTransformations/branched/folding/ifToAssignment/simpleIfWithoutTerminatingAssignment.kt

@@ -0,0 +1,14 @@
+// IS_APPLICABLE: false
+fun test(n: Int): String {
+    var res: String
+
+    <caret>if (n == 1) {
+        res = "one"
+        println("***")
+    } else {
+        println("***")
+        res = "two"
+    }
+
+    return res
+}