[ruby/prism] IndexTargetNode should always have ATTRIBUTE_WRITE

Because this is a user-facing change, we also need to deal with the
fact that CRuby 3.3.0 was just released.

In order to support workflows that want to parse exactly as CRuby
parses in a specific version, this PR introduces a new option to
the options struct that is "version". This allows you to specify
that you want "3.3.0" parsing.

I'm not sure if this is the correct solution. Another solution is
to just fork and keep around the old branch for security patches.
Or we could keep around a copy of the source files within this
repository as another directory and only update when necessary.
There are a lot of potential solutions here.

Because this change is so small and the check for it is so minimal,
I've decided to go with this enum. If this ends up entirely
cluttering the codebase with version checks, we'll come up with
another solution. But for now this works, so we're going to go in
this direction for a bit until we determine it's no longer working.

https://github.com/ruby/prism/commit/d8c7e6bd10

3 files changed, 9 insertions, 9 deletions

diff --git a/test/prism/snapshots/arrays.txt b/test/prism/snapshots/arrays.txt
index 93f5c8fbc1..40d4cbed4f 100644
--- a/test/prism/snapshots/arrays.txt
+++ b/test/prism/snapshots/arrays.txt
@@ -430,7 +430,7 @@
         ├── @ MultiWriteNode (location: (41,0)-(41,21))
         │   ├── lefts: (length: 2)
         │   │   ├── @ IndexTargetNode (location: (41,0)-(41,6))
-        │   │   │   ├── flags: ∅
+        │   │   │   ├── flags: attribute_write
         │   │   │   ├── receiver:
         │   │   │   │   @ CallNode (location: (41,0)-(41,3))
         │   │   │   │   ├── flags: variable_call
@@ -452,7 +452,7 @@
         │   │   │   ├── closing_loc: (41,5)-(41,6) = "]"
         │   │   │   └── block: ∅
         │   │   └── @ IndexTargetNode (location: (41,8)-(41,14))
-        │   │       ├── flags: ∅
+        │   │       ├── flags: attribute_write
         │   │       ├── receiver:
         │   │       │   @ CallNode (location: (41,8)-(41,11))
         │   │       │   ├── flags: variable_call
@@ -2166,7 +2166,7 @@
         │   │   │   ├── operator_loc: (140,17)-(140,19) = "=>"
         │   │   │   ├── reference:
         │   │   │   │   @ IndexTargetNode (location: (140,20)-(140,24))
-        │   │   │   │   ├── flags: ∅
+        │   │   │   │   ├── flags: attribute_write
         │   │   │   │   ├── receiver:
         │   │   │   │   │   @ CallNode (location: (140,20)-(140,21))
         │   │   │   │   │   ├── flags: variable_call
@@ -2229,7 +2229,7 @@
             │   │   ├── operator_loc: (142,17)-(142,19) = "=>"
             │   │   ├── reference:
             │   │   │   @ IndexTargetNode (location: (142,20)-(142,27))
-            │   │   │   ├── flags: ∅
+            │   │   │   ├── flags: attribute_write
             │   │   │   ├── receiver:
             │   │   │   │   @ CallNode (location: (142,20)-(142,21))
             │   │   │   │   ├── flags: variable_call
diff --git a/test/prism/snapshots/unparser/corpus/literal/assignment.txt b/test/prism/snapshots/unparser/corpus/literal/assignment.txt
index 18edafe415..4cb19d2867 100644
--- a/test/prism/snapshots/unparser/corpus/literal/assignment.txt
+++ b/test/prism/snapshots/unparser/corpus/literal/assignment.txt
@@ -319,7 +319,7 @@
         ├── @ MultiWriteNode (location: (15,0)-(15,24))
         │   ├── lefts: (length: 2)
         │   │   ├── @ IndexTargetNode (location: (15,1)-(15,8))
-        │   │   │   ├── flags: ∅
+        │   │   │   ├── flags: attribute_write
         │   │   │   ├── receiver:
         │   │   │   │   @ LocalVariableReadNode (location: (15,1)-(15,2))
         │   │   │   │   ├── name: :a
@@ -338,7 +338,7 @@
         │   │   │   ├── closing_loc: (15,7)-(15,8) = "]"
         │   │   │   └── block: ∅
         │   │   └── @ IndexTargetNode (location: (15,10)-(15,14))
-        │   │       ├── flags: ∅
+        │   │       ├── flags: attribute_write
         │   │       ├── receiver:
         │   │       │   @ LocalVariableReadNode (location: (15,10)-(15,11))
         │   │       │   ├── name: :a
@@ -370,7 +370,7 @@
         ├── @ MultiWriteNode (location: (16,0)-(16,21))
         │   ├── lefts: (length: 2)
         │   │   ├── @ IndexTargetNode (location: (16,1)-(16,5))
-        │   │   │   ├── flags: ∅
+        │   │   │   ├── flags: attribute_write
         │   │   │   ├── receiver:
         │   │   │   │   @ LocalVariableReadNode (location: (16,1)-(16,2))
         │   │   │   │   ├── name: :a
@@ -385,7 +385,7 @@
         │   │   │   ├── closing_loc: (16,4)-(16,5) = "]"
         │   │   │   └── block: ∅
         │   │   └── @ IndexTargetNode (location: (16,7)-(16,11))
-        │   │       ├── flags: ∅
+        │   │       ├── flags: attribute_write
         │   │       ├── receiver:
         │   │       │   @ LocalVariableReadNode (location: (16,7)-(16,8))
         │   │       │   ├── name: :a
diff --git a/test/prism/snapshots/whitequark/masgn_attr.txt b/test/prism/snapshots/whitequark/masgn_attr.txt
index d87d7a6cb1..2a4dc38b7c 100644
--- a/test/prism/snapshots/whitequark/masgn_attr.txt
+++ b/test/prism/snapshots/whitequark/masgn_attr.txt
@@ -34,7 +34,7 @@
         │   │   │   ├── name: :a=
         │   │   │   └── message_loc: (3,5)-(3,6) = "a"
         │   │   └── @ IndexTargetNode (location: (3,8)-(3,18))
-        │   │       ├── flags: ∅
+        │   │       ├── flags: attribute_write
         │   │       ├── receiver:
         │   │       │   @ SelfNode (location: (3,8)-(3,12))
         │   │       ├── opening_loc: (3,12)-(3,13) = "["