Fix minor issues

Author: danijelaskov

src/main/resources/lexer.flex

@@ -81,22 +81,22 @@ Identifier = [a-zA-Z][a-zA-Z0-9_]*
 	"const"                { return newSymbol(sym.CONST); }
 
 	// Operators
-	// Arithmetic operatrors
+	// Arithmetic operators
 	"+"                    { return newSymbol(sym.PLUS); }
 	"-"                    { return newSymbol(sym.MINUS); }
 	"*"                    { return newSymbol(sym.TIMES); }
 	"/"                    { return newSymbol(sym.DIV); }
 	"%"                    { return newSymbol(sym.MOD); }
 	"++"                   { return newSymbol(sym.INCR); }
 	"--"                   { return newSymbol(sym.DECR); }
-	// Relational operatrors
+	// Relational operators
 	"=="                   { return newSymbol(sym.EQ); }
 	"!="                   { return newSymbol(sym.NEQ); }
 	"<"                    { return newSymbol(sym.LT); }
 	"<="                   { return newSymbol(sym.LEQ); }
 	">"                    { return newSymbol(sym.GT); }
 	">="                   { return newSymbol(sym.GEQ); }
-	// Logical operatrors
+	// Logical operators
 	"&&"                   { return newSymbol(sym.AND); }
 	"||"                   { return newSymbol(sym.OR); }
 

src/test/java/dev/askov/mjcompiler/CompilationHelper.java

@@ -70,10 +70,6 @@ public static class SemanticResult {
       this.parseResult = parseResult;
       this.semanticError = semanticError;
     }
-
-    public boolean hasErrors() {
-      return parseResult.hasErrors() || semanticError;
-    }
   }
 
   @SuppressWarnings("unchecked")
@@ -198,17 +194,17 @@ public static String compileAndRun(String source) throws Exception {
     return compileAndRun(source, "");
   }
 
-  public static String runVM(File objFile, String input) throws Exception {
+  public static String runVM(File objFile, String input) {
     var originalIn = System.in;
     var originalOut = System.out;
     try {
       System.setIn(new ByteArrayInputStream(input.getBytes(StandardCharsets.UTF_8)));
-      var baos = new ByteArrayOutputStream();
-      System.setOut(new PrintStream(baos, true, StandardCharsets.UTF_8));
+      var outputStream = new ByteArrayOutputStream();
+      System.setOut(new PrintStream(outputStream, true, StandardCharsets.UTF_8));
 
       Run.main(new String[] {objFile.getAbsolutePath()});
 
-      var output = baos.toString(StandardCharsets.UTF_8);
+      var output = outputStream.toString(StandardCharsets.UTF_8);
       var completionIndex = output.indexOf("\nCompletion took");
       if (completionIndex >= 0) {
         output = output.substring(0, completionIndex);