Fix a corner case

Author: ailisp

src/parser.ts

@@ -3634,9 +3634,6 @@ export class Parser extends DiagnosticEmitter {
       tn.skip(Token.CLOSEBRACE);
       token = tn.next();
       if (token == Token.TEMPLATELITERAL) {
-        tn.skip(Token.TEMPLATELITERAL);
-        tn.advance();
-        tn.inStringTemplate = false;
         break;
       }
       if (token == Token.DOLLAR) {
@@ -3646,6 +3643,10 @@ export class Parser extends DiagnosticEmitter {
       parts.push(this.parseStringLiteral(tn, startPos, CharCode.BACKTICK));
       token = tn.next();
     }
+    if (token == Token.TEMPLATELITERAL) {
+      tn.advance();
+      tn.inStringTemplate = false;
+    }
     if (parts.length == 1) {
       return parts[0];
     }

src/tokenizer.ts

@@ -1042,6 +1042,7 @@ export class Tokenizer extends DiagnosticEmitter {
   }
 
   advance() {
+    this.nextToken = -1;
     ++this.pos;
   }