Enhancement: Regex validation: "parentheses not balanced" #178
Description
LLVM FileCheck has the following regex validation:
.../sample.itest:12:19: error: invalid regex: parentheses not balanced
CHECK-NEXT:hello{{(1|2}}
{{ message }}
LLVM FileCheck has the following regex validation:
.../sample.itest:12:19: error: invalid regex: parentheses not balanced
CHECK-NEXT:hello{{(1|2}}