Label order when generating bytecode

[Abhiroop]

The ordering of labels seems to be slightly buggy. Occasionally they are not sorted by their label numbers. Commits attempting to fix the issue:

ff28b70
7d7fd97

The problem seems to be fixed in LLExamples.hs but now Examples.hs is broken.

[Abhiroop]

These changes are most probably unnecessary. The assembler is designed in such a way such that, irrespective of the label numbers generated in the CAM IR, the assembler sequentially numbers them and all the label referring instructions (like GOTO, CALL etc) refer to the sequential number. Check buildST in the assembler.

Keeping this issue open in case we ever run into odd label numbering schemes in the bytecode.

[Abhiroop]

Reverted label sorting : 466f766