fix 311

Author: pfitzseb

src/components/internals.jl

@@ -364,7 +364,7 @@ function parse_importexport_item(ps, is_colon = false)
         pushtotrivia!(a, accept_rparen(ps))
         a
     elseif kindof(ps.nt) === Tokens.EX_OR
-        @closer ps :comma parse_expression(ps)
+        parse_unary(ps, INSTANCE(next(ps)))
     elseif !is_colon && isoperator(ps.nt)
         next(ps)
         EXPR(:OPERATOR, ps.nt.startbyte - ps.t.startbyte,  1 + ps.t.endbyte - ps.t.startbyte, val(ps.t, ps))

test/parser.jl

@@ -1328,4 +1328,8 @@ end
         x, ps = CSTParser.parse(CSTParser.ParseState("""import notvar"papa" """), true)
         @test ps.errored == true
     end
+
+    @testset "#311" begin
+        @test test_expr(raw"import a.$b.c")
+    end
 end