Refine Scan's Cython implementation type information and pre-allocations

7890a34f · Brandon T. Willard · Brandon T. Willard · 74fb5433 · 7890a34f · 7890a34f
--- a/aesara/scan/c_code/scan_perform.c
+++ b/aesara/scan/c_code/scan_perform.c
--- a/aesara/scan/op.py
+++ b/aesara/scan/op.py
--- a/aesara/scan/scan_perform.pyx
+++ b/aesara/scan/scan_perform.pyx
--- a/aesara/scan/scan_perform_ext.py
+++ b/aesara/scan/scan_perform_ext.py