Add quick-fix for type variance conflict #KT-23082 Fixed

idea/testData/quickfix/removeTypeVariance/in.kt

@@ -0,0 +1,7 @@
+// "Remove 'in' variance from 'T'" "true"
+// WITH_RUNTIME
+
+class Test<in T> {
+    fun foo(t: T) {}
+    fun bar(): <caret>T = TODO()
+}

idea/testData/quickfix/removeTypeVariance/in.kt.after

@@ -0,0 +1,7 @@
+// "Remove 'in' variance from 'T'" "true"
+// WITH_RUNTIME
+
+class Test<T> {
+    fun foo(t: T) {}
+    fun bar(): <caret>T = TODO()
+}

idea/testData/quickfix/removeTypeVariance/out.kt

@@ -0,0 +1,7 @@
+// "Remove 'out' variance from 'T'" "true"
+// WITH_RUNTIME
+
+class Test<out T> {
+    fun foo(t: <caret>T) {}
+    fun bar(): T = TODO()
+}

idea/testData/quickfix/removeTypeVariance/out.kt.after

@@ -0,0 +1,7 @@
+// "Remove 'out' variance from 'T'" "true"
+// WITH_RUNTIME
+
+class Test<T> {
+    fun foo(t: <caret>T) {}
+    fun bar(): T = TODO()
+}