Fixed incorrect register move

src/build/token/Kind.go

@@ -31,12 +31,14 @@ const (
 	Shr                         // >>
 	LogicalAnd                  // &&
 	LogicalOr                   // ||
+	_comparisons                // <comparisons>
 	Equal                       // ==
+	NotEqual                    // !=
 	Less                        // <
 	Greater                     // >
-	NotEqual                    // !=
 	LessEqual                   // <=
 	GreaterEqual                // >=
+	_comparisonsEnd             // </comparisons>
 	Define                      // :=
 	Period                      // .
 	Call                        // x()

src/build/token/Token.go

@@ -28,6 +28,11 @@ func (t Token) IsAssignment() bool {
 	return t.Kind > _assignments && t.Kind < _assignmentsEnd
 }
 
+// IsComparison returns true if the token is a comparison operator.
+func (t Token) IsComparison() bool {
+	return t.Kind > _comparisons && t.Kind < _comparisonsEnd
+}
+
 // IsExpressionStart returns true if the token starts an expression.
 func (t Token) IsExpressionStart() bool {
 	return t.Kind == GroupStart || t.Kind == ArrayStart || t.Kind == BlockStart