Bootstrap AOT link matrix: recover failing fixtures (umbrella)

[PurHur]

Context

make bootstrap-aot-link on master currently fails most fixtures. Root causes tracked separately:

Issue	Area
#1068	P0 duplicate __compiler_getenv link symbol
#1069	Value type bitwise/unary/compare JIT
#1070	fwrite() JIT for const_string_folder
#1071	mkdir() two-arg
#1072	String-key hashtable dims
#1073	Stale #764 CI refs
TBD	Output mismatch fixtures

Gate

export PHP_COMPILER_LLVM_PATH=$PWD/.llvm
make bootstrap-aot-link
make bootstrap-wave-check
make examples-aot-smoke

[PurHur]

Partial: #1127 removes broken duplicate php-types-reference.patch and fixes apply order (cfg-reference after nullable-return). Remaining bootstrap-aot VALUE/bitwise fixtures tracked on #1098.