Add migration test script for eldritchv2

implants/lib/eldritchv2/stdlib/migration/tests/scripts/v1_compat.eld

@@ -0,0 +1,64 @@
+v1funcs = {
+    "int": [],
+    "float": [],
+    "string": ["capitalize", "codepoints", "count", "elems", "endswith", "find", "format", "index", "isalnum", "isalpha", "isdigit", "islower", "isspace", "istitle", "isupper", "join", "lower", "lstrip", "partition", "removeprefix", "removesuffix", "replace", "rfind", "rindex", "rpartition", "rsplit", "rstrip", "split", "splitlines", "startswith", "strip", "title", "upper"],
+    "bool": [],
+    "list": ["append", "clear", "extend", "index", "insert", "pop", "remove"],
+    "dict": ["clear", "get", "items", "keys", "pop", "popitem", "setdefault", "update", "values"],
+    "tuple": [],
+}
+
+items = [
+    10,                 # int
+    3.14,               # float
+    "eldritch",         # string
+    True,               # bool
+    [1,2,"a"],          # list
+    {"a": 4},           # dict
+    (1,2,3),            # tuple
+
+    #b"\00\01",         # bytes - v2 exclusive
+    #{"a", 1, 2, "b"}   # set - v2 exclusive
+]
+
+exit = False # Used to force an error
+
+if "test>>>".rstrip(">") != "test":
+    print(f"[!] Fail: failed to rstrip")
+
+if "test> > >".rstrip("> ") != "test":
+    print(f"[!] Fail: failed to rstrip")
+
+if "< < <test".lstrip("< ") != "test":
+    print(f"[!] Fail: failed to lstrip")
+
+if "<<<test>>>".strip("<>") != "test":
+    print(f"[!] Fail: failed to strip")
+
+if len("test    test".split()) != 2:
+    print("[!] Fail: split should handle repeats", "test    test".split())
+    exit()
+
+if len("test\ttest".split()) != 2:
+    print("[!] Fail: split should split on tabs")
+    exit()
+
+# These functions should exist
+c = chr(ord('A'))
+if c != "A":
+    print(f"[!] Fail: {c} != 'A'")
+    exit()
+
+for i in items:
+    if type(i) in ("string", "list", "tuple"):
+        i[0] # Ensure substrings for indexable types
+        pass
+    # look through all the types and see if they have the expected functions
+    wants = dir(i)
+    for func in v1funcs.get(type(i), []):
+        if func not in wants:
+            t = type(i)
+            print(f"[!] Fail: missing function '{t}.{func}()'")
+            #exit() # force an error to quit
+
+res = regex.match("banana phone", r"(na+\sp)") # Raw strings dont work