'Add primary constructor' quick fix added

idea/testData/quickfix/addPrimaryConstructor/afterAddPrimaryConstructor1.kt

@@ -0,0 +1,6 @@
+// "Add primary constructor to A" "true"
+namespace a
+
+class A() {
+    var i : Int = <caret>1
+}

idea/testData/quickfix/addPrimaryConstructor/afterAddPrimaryConstructor2.kt

@@ -0,0 +1,6 @@
+// "Add primary constructor to A" "true"
+namespace a
+
+class A<caret>() {
+    var i : Int = 1
+}

idea/testData/quickfix/addPrimaryConstructor/beforeAddPrimaryConstructor1.kt

@@ -0,0 +1,6 @@
+// "Add primary constructor to A" "true"
+namespace a
+
+class A {
+    var i : Int = <caret>1
+}

idea/testData/quickfix/addPrimaryConstructor/beforeAddPrimaryConstructor2.kt

@@ -0,0 +1,6 @@
+// "Add primary constructor to A" "true"
+namespace a
+
+class A<caret> {
+    var i : Int = 1
+}