QML: Allow numeric separators in numeric literalsHEADdev

ES2021 introduced numeric separators in numeric literals to improve
readability.

For example, one billion can be written "1_000_000_000" where "_" are
the numeric separators.

Update the QML lexer to allow numeric separators, based on
https://262.ecma-international.org/12.0/#prod-NumericLiteralSeparator.

Add a non-exhaustive test case to `tst_qqmlparser` to track the behavior.

Fixes: QTBUG-123792
Change-Id: Ie62d1f40fc8e0c7678e7dfea16408bdeeba6d150
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Olivier De Cannière <olivier.decanniere@qt.io>
Reviewed-by: Sami Shalayel <sami.shalayel@qt.io>
Reviewed-by: Dmitrii Akshintsev <dmitrii.akshintsev@qt.io>

0 files changed, 0 insertions, 0 deletions