labels with same name as subcall causes incorrect identifier resolution

[dlech]

I haven't found the source of the problem yet, but the attached file produces bad bytecodes for subcall ComparisonCore when compiled with the -ev3g flag.

ReplayG2 IfelseVM.zip

[dlech]

Further inspection shows that this bug is not related to OptimizeLabels, but rather there is a label with the same name as a subcall.

The identifier greaterThan is resolved as a subcall instead of label when it is used in JR_EQ32 in ComparisonCore.