compiler: properly handle keyword in parenthesized property access expression

Due to the special code path parsing the leading label portion of a
parenthesized expression, keywords following a property access operator
(TK_DOT, `.`) weren't properly handled, emitting a syntax error when an
otherwise valid expression such as `value.default` was being parsed as
first sub expression of a parenthesized expression.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/custom/03_bugs/21_compiler_parenthesized_prop_keyword b/tests/custom/03_bugs/21_compiler_parenthesized_prop_keyword
new file mode 100644
index 0000000..472b2af
--- /dev/null
+++ b/tests/custom/03_bugs/21_compiler_parenthesized_prop_keyword
@@ -0,0 +1,17 @@
+When compiling a parenthesized property access expression, the compiler
+didn't instruct the lexer to treat a potential subsequent keyword as label,
+leading to an incorrect syntax error exception.
+
+-- Expect stdout --
+true
+true
+-- End --
+
+-- Testcase --
+{%
+	let x = { default: true };
+
+	print(x.default, "\n");		// this was okay
+	print((x.default), "\n");	// this failed
+%}
+-- End --