fix non-working logging at first connection to PLC after Beremiz launch

At the same time this helps to avoid exception described in 1484:d5efbb20927e.

Merged in Surkovsv/beremiz (pull request #2)

fix bug with non-editable names and types of FB local variables in POU's written in ST or IL

fix bug with non-editable names and types of FB local variables in POU's written in ST or IL

fix highlighting input/outputs in function call in ST, if comment section is placed
inside call.

For example:

PackOutputs(
W4 := OUT1,
W5 := OUT2,
W6 := OUT3,
W7 := OUT4,
W8 := OUT5 (* comment inside call *),
W9 := OUT6,
W10 := OUT7,
W11 := OUT8);