Fix parameter order in iris.get() test calls

[Copilot]

The test_get_other_triton.py and related test files were calling iris.get() with swapped from_rank and to_rank parameters, causing all parameterized test cases to fail.

Root Cause

The function signature is:

iris.get(from_ptr, to_ptr, from_rank, to_rank, heap_bases, ...)

Tests were incorrectly passing cur_rank, target_rank when they should pass target_rank, cur_rank to read from the target rank into the current rank's local memory.

Changes

• test_get_other_triton.py: Swapped cur_rank and target_rank in iris.get() call
• test_get_cache_modifiers.py: Fixed parameter order in all four iris.get() call sites
• test_get_triton.py: Fixed parameter order in iris.get() call

# Before
iris.get(data + offsets, results + offsets, cur_rank, target_rank, heap_bases, ...)

# After
iris.get(data + offsets, results + offsets, target_rank, cur_rank, heap_bases, ...)

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