misc: Scope + Dependence cache management

Author: enwask

devito/types/caching.py

@@ -166,6 +166,11 @@ def clear(cls, force=True):
         # Wipe out the "true" SymPy cache
         cache.clear_cache()
 
+        # Clear Scope + Dependence caches (imported here to avoid circular imports)
+        from devito.ir.support.basic import Scope, Dependence  # noqa: E402
+        Scope._fetch.cache_clear()
+        Dependence.fetch.cache_clear()
+
         # Wipe out the hidden module-private SymPy caches
         sympy.polys.rootoftools.ComplexRootOf.clear_cache()
         sympy.polys.domains.modularinteger._modular_integer_cache.clear()