fix(parsers): preserve format boundaries and query occurrence identity

Normalize parsed facts at their owning boundaries across PE exports and certificates, ELF section names, GPU bundles, IL2CPP generic types, dyld slice selection, source maps, environment replay, and JavaScript mapped arguments. Preserve partial facts and explicit unsupported cases; clarify the corresponding documentation.

Validation: 831 affected tests passed with one existing skip across 23 files; build, typecheck/lint, documentation, formatting, and 2133-file test discovery passed. Format controls are synthetic; real Unity, GPU, and ARM-device execution is unverified.

Fixes #6709
Fixes #6688
Fixes #6719
Fixes #6718
Fixes #6704
Fixes #6703
Fixes #6692
Fixes #6723
Fixes #6687
Fixes #6726
Fixes #6696
Fixes #6691
Fixes #6727

docs/il2cpp-metadata.md

@@ -260,8 +260,10 @@ The result adds:
   definitions, `T[]` for vectors, `T[*]` for rank-one multidimensional arrays,
   `T[,]` for rank-two arrays and `T*`, generic instances as
   `System.Collections.Generic.List<string>` and generic parameters by their
-  metadata name (`TKey`). A trailing `&` marks a by-reference type. `name` is
-  `null` only for type index `-1`.
+  metadata name (`TKey`). Nested generic arguments stay with the component
+  that declares them, for example `Game.Outer<int>+Inner<string>` or
+  `Game.Outer<int>+Leaf` when the nested type adds no parameters. A trailing
+  `&` marks a by-reference type. `name` is `null` only for type index `-1`.
 
 `binary` also records `types_field` and `types_count`: the address of
 `Il2CppMetadataRegistration.typesCount` and its value. That record is found as