Inline refactoring: shouldn't lose return type information

#KT-26705 Fixed

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitGenericTypeInReturn.kt

@@ -0,0 +1,9 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+fun f() {
+    buildMyList<caret>(5)
+}
+
+private fun buildMyList(count: Int): List<String> {
+    return buildList(size = count)
+}

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitGenericTypeInReturn.kt.after

@@ -0,0 +1,6 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+fun f() {
+    buildList<String>(size = 5)
+}
+

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitGenericTypeInReturnWithInvalidStatementBefore.kt

@@ -0,0 +1,10 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+fun f() {
+    buildMyList<caret>(5)
+}
+
+private fun buildMyList(count: Int): List<String> {
+    buildList(size = count)
+    return buildList(size = count)
+}

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitGenericTypeInReturnWithInvalidStatementBefore.kt.after

@@ -0,0 +1,7 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+fun f() {
+    buildList(size = 5)
+    buildList<String>(size = 5)
+}
+

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitGenericTypeInReturnWithOtherStatementBefore.kt

@@ -0,0 +1,10 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+fun f() {
+    buildMyList<caret>(5)
+}
+
+private fun buildMyList(count: Int): List<String> {
+    val b: List<Int> = buildList(size = count)
+    return buildList(size = count)
+}

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitGenericTypeInReturnWithOtherStatementBefore.kt.after

@@ -0,0 +1,7 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+fun f() {
+    val b: List<Int> = buildList(size = 5)
+    buildList<String>(size = 5)
+}
+

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitUnitGenericTypeInReturn.kt

@@ -0,0 +1,9 @@
+fun <T> buildType(size: Int): T = TODO()
+
+fun f() {
+    buildMyList<caret>(5)
+}
+
+private fun buildMyList(count: Int) {
+    return buildType(size = count)
+}

idea/testData/refactoring/inline/function/returnAtEnd/ImplicitUnitGenericTypeInReturn.kt.after

@@ -0,0 +1,6 @@
+fun <T> buildType(size: Int): T = TODO()
+
+fun f() {
+    buildType<Unit>(size = 5)
+}
+

idea/testData/refactoring/inline/function/returnAtEnd/Kt26705.kt

@@ -0,0 +1,11 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+class Test {
+    fun f() {
+        val list = buildMyList(5)
+    }
+
+    private fun buildMyList<caret>(count: Int): List<String> {
+        return buildList(size = count)
+    }
+}

idea/testData/refactoring/inline/function/returnAtEnd/Kt26705.kt.after

@@ -0,0 +1,8 @@
+fun <T> buildList(size: Int) = listOf<T>()
+
+class Test {
+    fun f() {
+        val list = buildList<String>(size = 5)
+    }
+
+}