Add just infix to EitherOrBoth is_variant methods

src/either_or_both.rs

@@ -24,7 +24,7 @@ impl<A, B> EitherOrBoth<A, B> {
 
     /// If Left, return true otherwise, return false.
     /// Exclusive version of [`has_left`].
-    pub fn is_left(&self) ->  bool {
+    pub fn is_just_left(&self) ->  bool {
         match *self {
             Left(_) => true,
             _ => false
@@ -33,7 +33,7 @@ impl<A, B> EitherOrBoth<A, B> {
 
     /// If Right, return true otherwise, return false.
     /// Exclusive version of [`has_right`].
-    pub fn is_right(&self) ->  bool {
+    pub fn is_just_right(&self) ->  bool {
         match *self {
             Right(_) => true,
             _ => false
@@ -42,7 +42,7 @@ impl<A, B> EitherOrBoth<A, B> {
 
     /// If Right, return true otherwise, return false.
     /// Equivalent to `self.as_ref().both().is_some()`.
-    pub fn is_both(&self) ->  bool {
+    pub fn is_just_both(&self) ->  bool {
         self.as_ref().both().is_some()
     }