Implement intention to remove labeled return from last lambda expression

So #KT-20439 Fixed

idea/testData/intentions/removeLabeledReturnInLambda/.intention

@@ -0,0 +1 @@
+org.jetbrains.kotlin.idea.intentions.RemoveLabeledReturnInLambdaIntention

idea/testData/intentions/removeLabeledReturnInLambda/labeledLambda.kt

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Remove return@label"
+
+fun foo() {
+    listOf(1,2,3).find label@{
+        return@label <caret>true
+    }
+}

idea/testData/intentions/removeLabeledReturnInLambda/labeledLambda.kt.after

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Remove return@label"
+
+fun foo() {
+    listOf(1,2,3).find label@{
+        true
+    }
+}

idea/testData/intentions/removeLabeledReturnInLambda/normal.kt

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Remove return@find"
+
+fun foo() {
+    listOf(1,2,3).find {
+        return@find <caret>true
+    }
+}

idea/testData/intentions/removeLabeledReturnInLambda/normal.kt.after

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Remove return@find"
+
+fun foo() {
+    listOf(1,2,3).find {
+        true
+    }
+}

idea/testData/intentions/removeLabeledReturnInLambda/notInsideLabeled.kt

@@ -0,0 +1,6 @@
+// WITH_RUNTIME
+// IS_APPLICABLE: FALSE
+
+fun foo(): Boolean {
+    return@foo <caret>true
+}

idea/testData/intentions/removeLabeledReturnInLambda/notLabeled.kt

@@ -0,0 +1,9 @@
+// WITH_RUNTIME
+// IS_APPLICABLE: FALSE
+
+fun foo(): Boolean {
+    listOf(1,2,3).find {
+        return <caret>true
+    }
+    return false
+}

idea/testData/intentions/removeLabeledReturnInLambda/notLastLine.kt

@@ -0,0 +1,9 @@
+// WITH_RUNTIME
+// IS_APPLICABLE: FALSE
+
+fun foo() {
+    listOf(1,2,3).find {
+        <caret>1
+        return@find true
+    }
+}

idea/testData/intentions/removeLabeledReturnInLambda/outerLambda.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+// IS_APPLICABLE: FALSE
+
+fun foo() {
+    listOf(1,2,3).forEach {
+        listOf(1,2,3).find {
+            return@forEach<caret>
+        }
+    }
+}

idea/testData/intentions/removeLabeledReturnInLambda/unit.kt

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Remove return@forEach"
+
+fun foo() {
+    listOf(1,2,3).forEach {
+        <caret>return@forEach
+    }
+}

idea/testData/intentions/removeLabeledReturnInLambda/unit.kt.after

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Remove return@forEach"
+
+fun foo() {
+    listOf(1,2,3).forEach {
+    }
+}