Rename Lexer.mode to setMode

Also minor formatting.

runtime/Go/antlr/lexer.go

@@ -19,7 +19,7 @@ type Lexer interface {
 	pushMode(int)
 	popMode() int
 	setType(int)
-	mode(int)
+	setMode(int)
 }
 
 type BaseLexer struct {
@@ -249,6 +249,10 @@ func (b *BaseLexer) More() {
 	b.thetype = LexerMore
 }
 
+func (b *BaseLexer) setMode(m int) {
+	b.mode = m
+}
+
 func (b *BaseLexer) pushMode(m int) {
 	if LexerATNSimulatorDebug {
 		fmt.Println("pushMode " + strconv.Itoa(m))

runtime/Go/antlr/lexer_action.go

@@ -232,7 +232,7 @@ func NewLexerModeAction(mode int) *LexerModeAction {
 // <p>This action is implemented by calling {@link Lexer//mode} with the
 // value provided by {@link //getMode}.</p>
 func (l *LexerModeAction) execute(lexer Lexer) {
-	lexer.mode(l.mode)
+	lexer.setMode(l.mode)
 }
 
 func (l *LexerModeAction) Hash() string {