Allow generate toString(), equals(), and hashCode() to include non-default accessors

^KT-15262 Fixed

idea/testData/codeInsight/generate/toString/multipeTemplates/customAccessors.kt

@@ -5,5 +5,8 @@ class Test {
             field = value.toUpperCase()
         }
     var name: String = ""
+    val age by lazy { 15 + 10 }
+    val color: String
+        get() = "Purple"
     <caret>
 }

idea/testData/codeInsight/generate/toString/multipeTemplates/customAccessors.kt.after

@@ -5,10 +5,16 @@ class Test {
             field = value.toUpperCase()
         }
     var name: String = ""
+    val age by lazy { 15 + 10 }
+    val color: String
+        get() = "Purple"
+
     <caret>override fun toString(): String {
         return "Test(" +
                 "serial='$serial', " +
-                "name='$name'" +
+                "name='$name', " +
+                "age=$age, " +
+                "color='$color'" +
                 ")"
     }
 

idea/testData/codeInsight/generate/toString/singleTemplate/customAccessors.kt

@@ -4,5 +4,8 @@ class Test {
             field = value.toUpperCase()
         }
     var name: String = ""
+    val age by lazy { 15 + 10 }
+    val color: String
+        get() = "Purple"
     <caret>
 }

idea/testData/codeInsight/generate/toString/singleTemplate/customAccessors.kt.after

@@ -4,8 +4,12 @@ class Test {
             field = value.toUpperCase()
         }
     var name: String = ""
+    val age by lazy { 15 + 10 }
+    val color: String
+        get() = "Purple"
+
     <caret>override fun toString(): String {
-        return "Test(serial='$serial', name='$name')"
+        return "Test(serial='$serial', name='$name', age=$age, color='$color')"
     }
 
 }

idea/testData/codeInsight/generate/toString/singleTemplate/explicitDefaultAccessors.kt.after

@@ -6,7 +6,7 @@ class Test {
         get
 
     override fun toString(): String {
-        return "Test()"
+        return "Test(serial='$serial', name='$name')"
     }
 
 }