Fix false positive "Insert explicit type arguments" intention

#KT-16139 Fixed

idea/testData/intentions/insertExplicitTypeArguments/notApplicableGenericType.kt

@@ -0,0 +1,8 @@
+// IS_APPLICABLE: false
+class X<T>(val t: T)
+
+fun <T> X<T>.getT(): T = t
+
+fun <T> useX(x: X<out T>) {
+    x.getT<caret>()
+}