Parse {{yield}} as YieldTag

compiler/parse/state/mustache.js

@@ -177,6 +177,19 @@ export default function mustache ( parser ) {
 		parser.stack.push( block );
 	}
 
+	// {{yield}}
+	else if ( parser.eat( 'yield' ) ) {
+
+		parser.allowWhitespace();
+		parser.eat( '}}', true );
+
+		parser.current().children.push({
+			start,
+			end: parser.index,
+			type: 'YieldTag'
+		});
+	}
+
 	else {
 		const expression = readExpression( parser );
 

compiler/parse/state/yield.js

@@ -0,0 +1,11 @@
+export default function _yield ( parser ) {
+	const start = parser.index;
+
+	parser.current().children.push({
+		start,
+		end: parser.index,
+		type: 'YieldTag'
+	});
+
+	return null;
+}

test/parser/yield/input.html

@@ -0,0 +1 @@
+{{yield}}

test/parser/yield/output.json

@@ -0,0 +1,14 @@
+{
+  "html": {
+    "start": 0,
+    "end": 9,
+    "type": "Fragment",
+    "children": [
+      {
+        "start": 0,
+        "end": 9,
+        "type": "YieldTag"
+      }
+    ]
+  }
+}