Added ObjectEx.emit_signal

Author: SomeRanDev

std/gdscript/ObjectEx.hx

@@ -0,0 +1,19 @@
+package gdscript;
+
+import haxe.macro.Context;
+import haxe.macro.Expr;
+
+class ObjectEx {
+	@:native("emit_signal")
+	public static macro function emit_signal(args: Array<Expr>): Expr {
+		final injectArgs = [];
+		for(i in 0...args.length) {
+			injectArgs.push('{$i}');
+		}
+		final injectString = 'emit_signal(${injectArgs.join(", ")})';
+		return {
+			expr: ECall(macro untyped __gdscript__, [macro $v{injectString}].concat(args)),
+			pos: Context.currentPos()
+		};
+	}
+}