Optimise keyword arguments in the JIT

Since the JIT traces can see both sides of the call, it can remove the work done to parse and shuffle the arguments during optimization.

For example, calling the function

def foo(a, b): pass

with keyword arguments:

foo(0, b=2, a=1)

requires the tuple ("b", "a") to pushed to the stack after the arguments
and for the CALL_KW_PY instruction to parse and reorder the arguments.

We can work out the reordering required and emit the necessary stack permuting code,
then replace the CALL_KW_PY with a much more effcient CALL_PY_EXACT_ARGS

In the example above:

LOAD_CONSTANT ("b", "a")
CALL_KW_PY 3

can be replaced with

SWAP 2
CALL_PY_EXACT_ARGS 3

Linked PRs

• gh-151389

從 JIT 對 CALL_KW_PY 和 CALL_PY_EXACT_ARGS 的處理開始，使用 issue 中的關鍵字呼叫範例來理解所需的參數重新排列。完成的標準是 JIT 能夠以執行堆疊置換的程式碼和精確參數呼叫取代關鍵字呼叫，同時保留所示的呼叫行為；gh-151389 與此工作相關聯。