Add tests for #5854 (#10862)

tests/misc/projects/Issue5854/NamedLocal.hx

@@ -0,0 +1,10 @@
+class NamedLocal {
+	static function main() {
+		// shouldn't be parsed as a call
+		function test(str) {
+			trace(str);
+			throw "This function shouldn't have been called!!";
+		}
+		("hello");
+	}
+}

tests/misc/projects/Issue5854/UnnamedLocal.hx

@@ -0,0 +1,8 @@
+class UnnamedLocal {
+	static function main() {
+		function(str) {
+			trace(str);
+		}
+		("hello");
+	}
+}

tests/misc/projects/Issue5854/compile-fail.hxml

@@ -0,0 +1 @@
+--main UnnamedLocal

tests/misc/projects/Issue5854/compile-fail.hxml.stderr

@@ -0,0 +1 @@
+UnnamedLocal.hx:3: lines 3-5 : Unnamed lvalue functions are not supported

tests/misc/projects/Issue5854/compile.hxml

@@ -0,0 +1 @@
+--run NamedLocal