An issue with breaking out of labeled blocks

[Marc Andriu Carigiet]

Duktape Version

• Release 2.7.0
• 47eedc5d53

OS

• Ubuntu 20.04

** Description**
Breaking out of a labeled block with only one statement throws an error.

Test case

label1: break label1; 

Error message

Error: INVALID opcode (0)
    at [anon] (duk_js_executor.c:5215) internal
    at global (1.js:1) preventsyield
error in executing file 1.js

Expected behavior
No error should be thrown.