Make bytecode slightly more efficient by using sipush over constant

Signed-off-by: TheSilkMiner <thesilkminer@outlook.com>

Author: TheSilkMiner

JavaBytecodeCompiler/src/main/java/org/openzen/zenscript/javabytecode/compiler/JavaMethodBytecodeCompiler.java

@@ -394,7 +394,7 @@ public Void builtinStaticMethod(BuiltinMethodSymbol method, TypeID returnType, C
 			case BYTE_ADD_STRING:
 			case BYTE_CAT_STRING:
 				arguments[0].accept(expressionVisitor);
-				javaWriter.constant(0xFF);
+				javaWriter.siPush((short) 0xFF);
 				javaWriter.iAnd();
 				javaWriter.invokeStatic(INTEGER_TO_STRING);
 				arguments[1].accept(expressionVisitor);
@@ -629,42 +629,42 @@ public Void builtinStaticMethod(BuiltinMethodSymbol method, TypeID returnType, C
 				javaWriter.i2b();
 				break;
 			case BYTE_TO_SHORT:
-				javaWriter.constant(0xFF);
+				javaWriter.siPush((short) 0xFF);
 				javaWriter.iAnd();
 				javaWriter.i2s();
 				break;
 			case BYTE_TO_USHORT:
 			case BYTE_TO_INT:
 			case BYTE_TO_UINT:
 			case BYTE_TO_USIZE:
-				javaWriter.constant(0xFF);
+				javaWriter.siPush((short) 0xFF);
 				javaWriter.iAnd();
 				break;
 			case BYTE_TO_LONG:
 			case BYTE_TO_ULONG:
-				javaWriter.constant(0xFF);
+				javaWriter.siPush((short) 0xFF);
 				javaWriter.iAnd();
 				javaWriter.i2l();
 				break;
 			case BYTE_TO_FLOAT:
-				javaWriter.constant(0xFF);
+				javaWriter.siPush((short) 0xFF);
 				javaWriter.iAnd();
 				javaWriter.i2f();
 				break;
 			case BYTE_TO_DOUBLE:
-				javaWriter.constant(0xFF);
+				javaWriter.siPush((short) 0xFF);
 				javaWriter.iAnd();
 				javaWriter.i2d();
 				break;
 			case BYTE_TO_CHAR:
-				javaWriter.constant(0xFF);
+				javaWriter.siPush((short) 0xFF);
 				javaWriter.iAnd();
 				break;
 			case BYTE_TO_STRING:
 				if (arguments[0].type.isOptional()) {
 					javaWriter.invokeStatic(OBJECTS_TOSTRING);
 				} else {
-					javaWriter.constant(0xFF);
+					javaWriter.siPush((short) 0xFF);
 					javaWriter.iAnd();
 					javaWriter.invokeStatic(INTEGER_TO_STRING);
 				}