Sourcemap templates

[tzaffi]

Description

Sourcemapper was breaking on the compile step it uses to discover program counters when TMPL variables were used. This PR adds back the template substitution prior to compilation, using new zeroed typed definitions to substitute in for the templates for the purposes of PC collection.

Previous Behavior

❯ python examples/signature/dutch_auction.py
... first error in chain ...
urllib.error.HTTPError: HTTP Error 400: Bad Request

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
... most relevant error ...
  File "/Users/zeph/github/algorand/pt2/pyteal/compiler/sourcemap.py", line 940, in _build_pc_sourcemap
    algod_compilation = algod.compile(self.compiled_teal(), source_map=True)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/zeph/github/algorand/pt2/.venv/lib/python3.11/site-packages/algosdk/v2client/algod.py", line 470, in compile
    self.algod_request(
  File "/Users/zeph/github/algorand/pt2/.venv/lib/python3.11/site-packages/algosdk/v2client/algod.py", line 110, in algod_request
    raise error.AlgodHTTPError(e, code)
algosdk.error.AlgodHTTPError: 20: strconv.ParseUint: parsing "TMPL_START_ROUND": invalid syntax
21: strconv.ParseUint: parsing "TMPL_WRAPUP_ROUND": invalid syntax
33: failed to decode address TMPL_RECEIVER to base 32
44: failed to decode address TMPL_RECEIVER to base 32
48: strconv.ParseUint: parsing "TMPL_ASSET_A": invalid syntax
83: strconv.ParseUint: parsing "TMPL_REDEEM_ROUND": invalid syntax
91: strconv.ParseUint: parsing "TMPL_ASSET_B": invalid syntax
99: strconv.ParseUint: parsing "TMPL_ASSET_A": invalid syntax
107: strconv.ParseUint: parsing "TMPL_ASSET_C": invalid syntax
111: strconv.ParseUint: parsing "TMPL_REDEEM_ROUND": invalid syntax

[bbroder-algo]

Sourcemapper was breaking on the compile step it uses to discover program counters when TMPL variables were used. This PR adds back the template substitution prior to compilation, using new zeroed typed definitions to substitute in for the templates for the purposes of PC collection.

[ahangsu]

just one minor question, but mostly looks reasonable