KT-33384 Intention to switch between single-line/multi-line lambda (#2790)

Add intention for single-line lambda <-> multi-line lambda conversion

#KT-33384 Fixed

idea/testData/intentions/convertLambdaToMultiLine/multiLine.kt

@@ -0,0 +1,7 @@
+// IS_APPLICABLE: false
+// WITH_RUNTIME
+fun test(list: List<String>) {
+    list.forEach {
+        println(it)
+    }<caret>
+}