V4: The rest of the non control-flow instructions (#1568)

* ClassicalConvert tests

* tests for Classical(Exchange|Load|Move)

* ClassicalStore tests

* test ClassicalComparison classes

* test UnaryClassicalInstructions

* Include implementation and test

* Wait, Halt, Nop test and implementation

* implement ClassicalConvert

* re-implement ClassicalLoad

* re-implement ClassicalStore

* re-implement ClassicalComparison

* re-implement Exchange

* re-implement ClassicalUnary

* back ClassicalMove, ClassicalExchange with quil-rs

* fix recursive implementation of SimpleInstruction.__str__

Author: MarquessV

pyquil/quilatom.py

@@ -834,6 +834,9 @@ def _from_parameter_str(cls, memory_reference_str: str) -> "MemoryReference":
             return cls._from_rs_memory_reference(expression.to_address())
         raise ValueError(f"{memory_reference_str} is not a memory reference")
 
+    def _to_rs_memory_reference(self) -> quil_rs.MemoryReference:
+        return quil_rs.MemoryReference(self.name, self.offset)
+
     def out(self) -> str:
         if self.declared_size is not None and self.declared_size == 1 and self.offset == 0:
             return "{}".format(self.name)