aihc-parser-1.0.0.2: test/Test/Fixtures/lexer/numeric-underscores/decimal-invalid-leading-underscore.yaml

# Testing: _0001 (invalid - leading underscore on integer)
# GHC treats this as a variable/hole, not a number.
extensions:
  - NumericUnderscores
input: "_0001"
tokens:
  - 'TkVarId "_0001"'
  - "TkEOF"
status: pass