[tests] Add server test for #8004 (#11950)

tests/server/src/cases/issues/Issue8004.hx

@@ -0,0 +1,84 @@
+package cases.issues;
+
+import haxe.Json;
+import haxe.display.FsPath;
+import haxe.display.Server;
+
+class Issue8004 extends TestCase {
+	@:variant("Js", "js", "test.js")
+	@:variant("Jvm", "jvm", "test.jar")
+	@:variant("Neko", "neko", "test.n")
+	@:variant("Lua", "lua", "test.lua")
+	@:variant("Python", "python", "test.py")
+	@:variant("Swf", "swf", "test.swf")
+	@:variant("Hashlink", "hl", "test.hl")
+	@:variant("CPP", "cpp", "cpp")
+	@:variant("PHP", "php", "php")
+	@:variant("Eval", "--interp", null)
+	function test(target:String, output:Null<String>) {
+		vfs.putContent("Empty.hx", getTemplate("Empty.hx"));
+		var args = output == null ? ["-main", "Empty", target] : ["-main", "Empty", '-$target', 'bin/$output', "--no-output"];
+
+		runHaxe(args);
+		runHaxeJson(args, ServerMethods.ReadClassPaths, null);
+		runHaxe(args.concat(["--display", "?@0@workspace-symbols@uint"]));
+
+		var result:Array<SymbolReply> = Json.parse(lastResult.stderr);
+		var found = false;
+		for (module in result) {
+			for (symbol in module.symbols) {
+				if (symbol.name == "UInt" && symbol.kind == Abstract) {
+					found = true;
+					break;
+				}
+			}
+		}
+		Assert.isTrue(found);
+	}
+}
+
+// From Haxe LSP; should be moved to haxe.display package when workspace symbols
+// are added as Json RPC
+private enum abstract ModuleSymbolKind(Int) {
+	final Class = 1;
+	final Interface;
+	final Enum;
+	final TypeAlias;
+	final Abstract;
+	final Field;
+	final Property;
+	final Method;
+	final Constructor;
+	final Function;
+	final Variable;
+	final Struct;
+	final EnumAbstract;
+	final Operator;
+	final EnumMember;
+	final Constant;
+	final Module;
+}
+
+private typedef ModuleSymbolEntry = {
+	final name:String;
+	final kind:ModuleSymbolKind;
+	final range:Range;
+	final ?containerName:String;
+	final ?isDeprecated:Bool;
+}
+
+private typedef SymbolReply = {
+	final file:FsPath;
+	final symbols:Array<ModuleSymbolEntry>;
+}
+
+// From Haxe server protocol
+private typedef Position = {
+	var line:Int;
+	var character:Int;
+}
+
+private typedef Range = {
+	var start:Position;
+	var end:Position;
+}