Add intentions to convert nullable <--> lateinit var #KT-12743 Fixed

idea/testData/intentions/convertLateinitPropertyToNullable/.intention

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

idea/testData/intentions/convertLateinitPropertyToNullable/initializer.kt

@@ -0,0 +1,5 @@
+// IS_APPLICABLE: false
+// DISABLE-ERRORS
+class C {
+    <caret>private lateinit var bar: String = ""
+}

idea/testData/intentions/convertLateinitPropertyToNullable/nullable.kt

@@ -0,0 +1,5 @@
+// IS_APPLICABLE: false
+// DISABLE-ERRORS
+class C {
+    <caret>private lateinit var bar: String?
+}

idea/testData/intentions/convertLateinitPropertyToNullable/simple.kt

@@ -0,0 +1,3 @@
+class C {
+    <caret>private lateinit var bar: String
+}

idea/testData/intentions/convertLateinitPropertyToNullable/simple.kt.after

@@ -0,0 +1,3 @@
+class C {
+    private var bar: String? = null
+}

idea/testData/intentions/convertLateinitPropertyToNullable/val.kt

@@ -0,0 +1,5 @@
+// IS_APPLICABLE: false
+// DISABLE-ERRORS
+class C {
+    <caret>private lateinit val bar: String
+}