(F)Rect.inflate(_ip) FASTCALL

[ankith26]

A low hanging fruit for minor performance enhancements, and also makes the code inline with rest of the file.

Benchmarking results

Argument	Before	After	Improvement (%)
Vector2	0.000643572	0.000483602	25.0%
list	0.000617076	0.000442811	28.2%
tuple	0.000617972	0.000454474	26.5%
2 args, inline	0.000611962	0.000431108	29.5%

Benchmarking code

from timeit import repeat
from pygame import Rect, Vector2

r = Rect(0, 0, 100, 100)
a1 = Vector2(10, 10)
a2 = [10, 10]
a3 = (10, 10)

G = globals()
N = 10000
R = 1000

tests = [
    ("Vector2", "r.inflate(a1)"),
    ("list", "r.inflate(a2)"),
    ("tuple", "r.inflate(a3)"),
    ("2 args, inline", "r.inflate(10, 10)"),
]

for name, test in tests:
    print(name + ": ", end="")
    print(min(repeat(test, globals=G, number=N, repeat=R)))