all: Fix spelling mistakes based on codespell check.

Signed-off-by: Damien George <damien@micropython.org>

tests/basics/annotate_var.py

@@ -1,4 +1,4 @@
-# test PEP 526, varible annotations
+# test PEP 526, variable annotations
 
 x: int
 print("x" in globals())

tests/basics/int_big1.py

@@ -1,4 +1,4 @@
-# to test arbitrariy precision integers
+# to test arbitrary precision integers
 
 x = 1000000000000000000000000000000
 xn = -1000000000000000000000000000000

tests/basics/struct1.py

@@ -57,7 +57,7 @@ try:
 except:
     print("Unknown type")
 
-# Initially repitition counters were supported only for strings,
+# Initially repetition counters were supported only for strings,
 # but later were implemented for all.
 print(struct.unpack("<3B2h", b"foo\x12\x34\xff\xff"))
 print(struct.pack("<3B", 1, 2, 3))

tests/basics/with_return.py

@@ -30,7 +30,7 @@ def f():
                 return (i, j)
 print(f())
 
-# multiple for loops within nested withs
+# multiple for loops within nested with's
 def f():
     with CtxMgr(1):
         for i in [1, 2]:
@@ -41,7 +41,7 @@ def f():
                             return (i, j, k, l)
 print(f())
 
-# multiple for loops that are optimised, and nested withs
+# multiple for loops that are optimised, and nested with's
 def f():
     with CtxMgr(1):
         for i in range(1, 3):