Rename isAt method to isNext in ImmutableStringReader and StringReader

src/main/java/com/mojang/brigadier/ImmutableStringReader.java

@@ -24,5 +24,5 @@ public interface ImmutableStringReader {
 
     char peek(int offset);
 
-    boolean isAt(char c);
+    boolean isNext(char c);
 }

src/main/java/com/mojang/brigadier/StringReader.java

@@ -77,7 +77,7 @@ public class StringReader implements ImmutableStringReader {
     }
 
     @Override
-    public boolean isAt(char c) {
+    public boolean isNext(char c) {
         return canRead() && peek() == c;
     }
 
@@ -254,7 +254,7 @@ public class StringReader implements ImmutableStringReader {
     }
 
     public void expect(final char c) throws CommandSyntaxException {
-        if (!isAt(c)) {
+        if (!isNext(c)) {
             throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.readerExpectedSymbol().createWithContext(this, String.valueOf(c));
         }
         skip();

src/test/java/com/mojang/brigadier/StringReaderTest.java

@@ -589,11 +589,11 @@ public class StringReaderTest {
     @Test
     public void isAt() {
         final StringReader reader = new StringReader("abc");
-        assertThat(reader.isAt('a'), is(true));
-        assertThat(reader.isAt('x'), is(false));
+        assertThat(reader.isNext('a'), is(true));
+        assertThat(reader.isNext('x'), is(false));
         reader.setCursor(2);
-        assertThat(reader.isAt('c'), is(true));
+        assertThat(reader.isNext('c'), is(true));
         reader.skip();
-        assertThat(reader.isAt('c'), is(false));
+        assertThat(reader.isNext('c'), is(false));
     }
 }