Merge pull request #410 from kuity/unnecessaryParensInWhenToIf

Fix KT-4385 "Unnecessary parentheses in "replace when with if"

idea/testData/intentions/branched/ifWhen/whenToIf/whenWithDotQualifiedExpression.kt

@@ -0,0 +1,13 @@
+class G {
+    fun cat(x: Int, y: Int): Int {
+        return x + y
+    }
+}
+
+fun test(x: Int, y: Int): String {
+    when<caret> (G.cat(x, y)) {
+        1 -> return "one"
+        2 -> return "two"
+        else -> return "big"
+    }
+}

idea/testData/intentions/branched/ifWhen/whenToIf/whenWithDotQualifiedExpression.kt.after

@@ -0,0 +1,11 @@
+class G {
+    fun cat(x: Int, y: Int): Int {
+        return x + y
+    }
+}
+
+fun test(x: Int, y: Int): String {
+    if (G.cat(x, y) == 1) return "one"
+    else if (G.cat(x, y) == 2) return "two"
+    else return "big"
+}