Move statement: enable single lambda expression function

#KT-10478 Fixed

idea/testData/codeInsight/moveUpDown/classBodyDeclarations/function/singleLambdaExpressionFunction1.kt

@@ -0,0 +1,10 @@
+// MOVE: down
+fun a() {
+}
+
+<caret>fun b() = {
+    ""
+}
+
+fun c() {
+}

idea/testData/codeInsight/moveUpDown/classBodyDeclarations/function/singleLambdaExpressionFunction1.kt.after

@@ -0,0 +1,10 @@
+// MOVE: down
+fun a() {
+}
+
+fun c() {
+}
+
+<caret>fun b() = {
+    ""
+}

idea/testData/codeInsight/moveUpDown/classBodyDeclarations/function/singleLambdaExpressionFunction2.kt

@@ -0,0 +1,10 @@
+// MOVE: up
+fun a() {
+}
+
+fun c() {
+}
+
+<caret>fun b() = {
+    ""
+}

idea/testData/codeInsight/moveUpDown/classBodyDeclarations/function/singleLambdaExpressionFunction2.kt.after

@@ -0,0 +1,10 @@
+// MOVE: up
+fun a() {
+}
+
+<caret>fun b() = {
+    ""
+}
+
+fun c() {
+}