Merge branch 'syntax/group2' into 'master'

testcases from group2

See merge request !20

syntax/AdditionalSemicolon.invalid.mj

+class Class {
+  public static void main(String[] args) {
+    return if(var) ; else ;;
+  }
+}
\ No newline at end of file

syntax/BlockStatement.mj

+class _testClass {
+    public static void main (void[][][] _ident) {
+        {;}{{{{{{{{{}}}}}}}}}{{{;}}}{;}
+    }
+
+    public void _VoId(int _VoId) throws EVIL {
+        return;
+        return((new void [this = this][]));
+    }
+
+        public static void main(String arg) {
+        while (null) {
+            
+        }
+    }
+}

syntax/EmptyClassNamedStaticMethod.mj

+class Empty
+{
+}
+
+class Valid {
+    public static void notMain(void test) throws Exception {
+        0.method(test, method2(0, true)).arr[false].field;
+        return new void[false || 17 = true = false][][][42].call();
+    }
+}

syntax/InvalidExpression.invalid.mj

+class claus {
+
+    public static void main(String[] args) {
+        while(1 <= < 2) ;
+    }
+}

syntax/MissingPrimaryExpr.invalid.mj

+class _Name {
+    public static void main(String ) {
+        test test = .ident;
+    }
+}
\ No newline at end of file

syntax/ParametersTrailingComma.invalid.mj

+class testClass {
+    public int testMethod(int test1, int test2, int test3,) {
+
+    }
+
+}
\ No newline at end of file

syntax/PostfixOP.mj

+class _Klasse {
+    public static void main(String[] args) {
+        if (null.nothing) if (true.fun()) if (false[472183921789789798798798798798787789738120391203213213]) return;
+    }
+}
\ No newline at end of file

syntax/StaticInt.invalid.mj

+class Invalid {
+    public static int main(String[] args) { }
+}

syntax/UnderscoreNamesTypes.mj

+class _ {
+
+  public void Void() throws _class {
+    boolean[] Int = Void02(someclass.Int);
+    if(Int) ; else {
+      return Int || intbool = 3;
+    }
+  }
+
+  public _ _(){;}
+
+  public static void othermain(int args) {
+    if(var) return var; else while(true) if(var2) while(false) ;
+    {{}; {{}; {{};;}}}
+  }
+}

syntax/ValidSyntaxInvalidSemantics.mj

+class _0a {
+    public thisTypeDoesntExist void_;
+    public Type IDENT ;
+
+    public static void mai_n(Schtring[][] args) throws _0a {
+        int a = null;
+        
+        thiss.arr[0 > 2]
+        .lala[new k()]
+        
+        [-1].method(-!this);
+    }
+}