SPMI should diff unwind info

[jakobbotsch]

Currently SPMI does not diff unwind info produced by the JIT:

runtime/src/coreclr/tools/superpmi/superpmi/neardiffer.cpp

Lines 1349 to 1381 in 57ed254

	cr2->applyRelocs(&rc, hotCodeBlock_2, hotCodeSize_2, orig_hotCodeBlock_2);
	cr2->applyRelocs(&rc, coldCodeBlock_2, coldCodeSize_2, orig_coldCodeBlock_2);
	cr2->applyRelocs(&rc, roDataBlock_2, roDataSize_2, orig_roDataBlock_2);
	if (!compareCodeSection(mc, cr1, cr2, hotCodeBlock_1, hotCodeSize_1, roDataBlock_1, roDataSize_1,
	orig_hotCodeBlock_1, orig_roDataBlock_1, orig_coldCodeBlock_1, coldCodeSize_1,
	hotCodeBlock_2, hotCodeSize_2, roDataBlock_2, roDataSize_2, orig_hotCodeBlock_2,
	orig_roDataBlock_2, orig_coldCodeBlock_2, coldCodeSize_2))
	return false;
	if (!compareCodeSection(mc, cr1, cr2, coldCodeBlock_1, coldCodeSize_1, roDataBlock_1, roDataSize_1,
	orig_coldCodeBlock_1, orig_roDataBlock_1, orig_hotCodeBlock_1, hotCodeSize_1,
	coldCodeBlock_2, coldCodeSize_2, roDataBlock_2, roDataSize_2, orig_coldCodeBlock_2,
	orig_roDataBlock_2, orig_hotCodeBlock_2, hotCodeSize_2))
	return false;
	if (!compareReadOnlyDataBlock(mc, cr1, cr2, roDataBlock_1, roDataSize_1, orig_roDataBlock_1, roDataBlock_2,
	roDataSize_2, orig_roDataBlock_2))
	return false;
	if (!compareEHInfo(mc, cr1, cr2))
	return false;
	if (!compareGCInfo(mc, cr1, cr2))
	return false;
	if (!compareVars(mc, cr1, cr2))
	return false;
	if (!compareBoundaries(mc, cr1, cr2))
	return false;
	return true;

Diffing this info could have prevented #112799, so it would probably be a good idea to diff it like the other outputs.

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