[ruby/prism] Add numbered_parameters field to BlockNode and LambdaNode

We are aware at parse time how many numbered parameters we have
on a BlockNode or LambdaNode, but prior to this commit, did not
store that information anywhere in its own right.

The numbered parameters were stored as locals, but this does not
distinguish them from other locals that have been set, for example
in `a { b = 1; _1 }` there is nothing on the AST that distinguishes
b from _1.

Consumers such as the compiler need to know information about how
many numbered parameters exist to set up their own tables around
parameters. Since we have this information at parse time, we should
compute it here, instead of deferring the work later on.

https://github.com/ruby/prism/commit/bf4a1e124d

1 files changed, 60 insertions, 30 deletions

diff --git a/test/prism/snapshots/unparser/corpus/literal/block.txt b/test/prism/snapshots/unparser/corpus/literal/block.txt
index b88e5f23a1..76d51d709e 100644
--- a/test/prism/snapshots/unparser/corpus/literal/block.txt
+++ b/test/prism/snapshots/unparser/corpus/literal/block.txt
@@ -17,7 +17,8 @@
         │   │   ├── parameters: ∅
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (1,4)-(1,5) = "{"
-        │   │   └── closing_loc: (2,0)-(2,1) = "}"
+        │   │   ├── closing_loc: (2,0)-(2,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (3,0)-(4,1))
         │   ├── receiver: ∅
@@ -48,7 +49,8 @@
         │   │   │   └── closing_loc: (3,8)-(3,9) = "|"
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (3,4)-(3,5) = "{"
-        │   │   └── closing_loc: (4,0)-(4,1) = "}"
+        │   │   ├── closing_loc: (4,0)-(4,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (5,0)-(6,1))
         │   ├── receiver: ∅
@@ -83,7 +85,8 @@
         │   │   │   └── closing_loc: (5,9)-(5,10) = "|"
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (5,4)-(5,5) = "{"
-        │   │   └── closing_loc: (6,0)-(6,1) = "}"
+        │   │   ├── closing_loc: (6,0)-(6,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (7,0)-(8,1))
         │   ├── receiver: ∅
@@ -120,7 +123,8 @@
         │   │   │   └── closing_loc: (7,12)-(7,13) = "|"
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (7,4)-(7,5) = "{"
-        │   │   └── closing_loc: (8,0)-(8,1) = "}"
+        │   │   ├── closing_loc: (8,0)-(8,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (9,0)-(10,1))
         │   ├── receiver: ∅
@@ -153,7 +157,8 @@
         │   │   │   └── closing_loc: (9,11)-(9,12) = "|"
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (9,4)-(9,5) = "{"
-        │   │   └── closing_loc: (10,0)-(10,1) = "}"
+        │   │   ├── closing_loc: (10,0)-(10,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (11,0)-(13,1))
         │   ├── receiver: ∅
@@ -177,7 +182,8 @@
         │   │   │   └── body: (length: 1)
         │   │   │       └── @ NilNode (location: (12,2)-(12,5))
         │   │   ├── opening_loc: (11,7)-(11,8) = "{"
-        │   │   └── closing_loc: (13,0)-(13,1) = "}"
+        │   │   ├── closing_loc: (13,0)-(13,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (14,0)-(16,1))
         │   ├── receiver: ∅
@@ -215,7 +221,8 @@
         │   │   │   └── body: (length: 1)
         │   │   │       └── @ NilNode (location: (15,2)-(15,5))
         │   │   ├── opening_loc: (14,4)-(14,5) = "{"
-        │   │   └── closing_loc: (16,0)-(16,1) = "}"
+        │   │   ├── closing_loc: (16,0)-(16,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (17,0)-(19,1))
         │   ├── receiver: ∅
@@ -253,7 +260,8 @@
         │   │   │   └── body: (length: 1)
         │   │   │       └── @ NilNode (location: (18,2)-(18,5))
         │   │   ├── opening_loc: (17,4)-(17,5) = "{"
-        │   │   └── closing_loc: (19,0)-(19,1) = "}"
+        │   │   ├── closing_loc: (19,0)-(19,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (20,0)-(22,1))
         │   ├── receiver: ∅
@@ -281,7 +289,8 @@
         │   │   │           ├── block: ∅
         │   │   │           └── flags: variable_call
         │   │   ├── opening_loc: (20,4)-(20,5) = "{"
-        │   │   └── closing_loc: (22,0)-(22,1) = "}"
+        │   │   ├── closing_loc: (22,0)-(22,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (23,0)-(25,1))
         │   ├── receiver:
@@ -344,7 +353,8 @@
         │   │   │           ├── block: ∅
         │   │   │           └── flags: variable_call
         │   │   ├── opening_loc: (23,8)-(23,9) = "{"
-        │   │   └── closing_loc: (25,0)-(25,1) = "}"
+        │   │   ├── closing_loc: (25,0)-(25,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (26,0)-(27,1))
         │   ├── receiver:
@@ -389,7 +399,8 @@
         │   │   │   └── closing_loc: (26,16)-(26,17) = "|"
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (26,8)-(26,9) = "{"
-        │   │   └── closing_loc: (27,0)-(27,1) = "}"
+        │   │   ├── closing_loc: (27,0)-(27,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (28,0)-(29,1))
         │   ├── receiver:
@@ -432,7 +443,8 @@
         │   │   │   └── closing_loc: (28,15)-(28,16) = "|"
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (28,8)-(28,9) = "{"
-        │   │   └── closing_loc: (29,0)-(29,1) = "}"
+        │   │   ├── closing_loc: (29,0)-(29,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (30,0)-(31,1))
         │   ├── receiver:
@@ -467,7 +479,8 @@
         │   │   │   └── closing_loc: (30,17)-(30,18) = "|"
         │   │   ├── body: ∅
         │   │   ├── opening_loc: (30,8)-(30,9) = "{"
-        │   │   └── closing_loc: (31,0)-(31,1) = "}"
+        │   │   ├── closing_loc: (31,0)-(31,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (32,0)-(34,1))
         │   ├── receiver:
@@ -522,7 +535,8 @@
         │   │   │           ├── block: ∅
         │   │   │           └── flags: variable_call
         │   │   ├── opening_loc: (32,8)-(32,9) = "{"
-        │   │   └── closing_loc: (34,0)-(34,1) = "}"
+        │   │   ├── closing_loc: (34,0)-(34,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (35,0)-(37,1))
         │   ├── receiver:
@@ -582,7 +596,8 @@
         │   │   │           ├── block: ∅
         │   │   │           └── flags: variable_call
         │   │   ├── opening_loc: (35,8)-(35,9) = "{"
-        │   │   └── closing_loc: (37,0)-(37,1) = "}"
+        │   │   ├── closing_loc: (37,0)-(37,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (38,0)-(40,1))
         │   ├── receiver:
@@ -648,7 +663,8 @@
         │   │   │           ├── block: ∅
         │   │   │           └── flags: variable_call
         │   │   ├── opening_loc: (38,8)-(38,9) = "{"
-        │   │   └── closing_loc: (40,0)-(40,1) = "}"
+        │   │   ├── closing_loc: (40,0)-(40,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (41,0)-(43,1))
         │   ├── receiver:
@@ -716,7 +732,8 @@
         │   │   │           ├── block: ∅
         │   │   │           └── flags: variable_call
         │   │   ├── opening_loc: (41,8)-(41,9) = "{"
-        │   │   └── closing_loc: (43,0)-(43,1) = "}"
+        │   │   ├── closing_loc: (43,0)-(43,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (44,0)-(46,1))
         │   ├── receiver:
@@ -777,7 +794,8 @@
         │   │   │           ├── block: ∅
         │   │   │           └── flags: variable_call
         │   │   ├── opening_loc: (44,8)-(44,9) = "{"
-        │   │   └── closing_loc: (46,0)-(46,1) = "}"
+        │   │   ├── closing_loc: (46,0)-(46,1) = "}"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (47,0)-(48,5))
         │   ├── receiver:
@@ -805,7 +823,8 @@
         │   │   │   ├── parameters: ∅
         │   │   │   ├── body: ∅
         │   │   │   ├── opening_loc: (47,8)-(47,9) = "{"
-        │   │   │   └── closing_loc: (48,0)-(48,1) = "}"
+        │   │   │   ├── closing_loc: (48,0)-(48,1) = "}"
+        │   │   │   └── numbered_parameters: 0
         │   │   └── flags: ∅
         │   ├── call_operator_loc: (48,1)-(48,2) = "."
         │   ├── name: :baz
@@ -848,7 +867,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (51,0)-(51,3) = "end"
         │   │   ├── opening_loc: (49,2)-(49,4) = "do"
-        │   │   └── closing_loc: (51,0)-(51,3) = "end"
+        │   │   ├── closing_loc: (51,0)-(51,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (52,0)-(56,3))
         │   ├── receiver: ∅
@@ -900,7 +920,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (56,0)-(56,3) = "end"
         │   │   ├── opening_loc: (52,2)-(52,4) = "do"
-        │   │   └── closing_loc: (56,0)-(56,3) = "end"
+        │   │   ├── closing_loc: (56,0)-(56,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (57,0)-(61,3))
         │   ├── receiver: ∅
@@ -969,7 +990,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (61,0)-(61,3) = "end"
         │   │   ├── opening_loc: (57,2)-(57,4) = "do"
-        │   │   └── closing_loc: (61,0)-(61,3) = "end"
+        │   │   ├── closing_loc: (61,0)-(61,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (62,0)-(66,3))
         │   ├── receiver: ∅
@@ -1041,7 +1063,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (66,0)-(66,3) = "end"
         │   │   ├── opening_loc: (62,2)-(62,4) = "do"
-        │   │   └── closing_loc: (66,0)-(66,3) = "end"
+        │   │   ├── closing_loc: (66,0)-(66,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (67,0)-(71,3))
         │   ├── receiver: ∅
@@ -1108,7 +1131,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (71,0)-(71,3) = "end"
         │   │   ├── opening_loc: (67,2)-(67,4) = "do"
-        │   │   └── closing_loc: (71,0)-(71,3) = "end"
+        │   │   ├── closing_loc: (71,0)-(71,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (72,0)-(75,3))
         │   ├── receiver: ∅
@@ -1152,7 +1176,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (75,0)-(75,3) = "end"
         │   │   ├── opening_loc: (72,2)-(72,4) = "do"
-        │   │   └── closing_loc: (75,0)-(75,3) = "end"
+        │   │   ├── closing_loc: (75,0)-(75,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (76,0)-(81,3))
         │   ├── receiver: ∅
@@ -1210,7 +1235,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (81,0)-(81,3) = "end"
         │   │   ├── opening_loc: (76,2)-(76,4) = "do"
-        │   │   └── closing_loc: (81,0)-(81,3) = "end"
+        │   │   ├── closing_loc: (81,0)-(81,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (82,0)-(86,3))
         │   ├── receiver: ∅
@@ -1280,7 +1306,8 @@
         │   │   │   ├── ensure_clause: ∅
         │   │   │   └── end_keyword_loc: (86,0)-(86,3) = "end"
         │   │   ├── opening_loc: (82,2)-(82,4) = "do"
-        │   │   └── closing_loc: (86,0)-(86,3) = "end"
+        │   │   ├── closing_loc: (86,0)-(86,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (87,0)-(89,3))
         │   ├── receiver: ∅
@@ -1307,7 +1334,8 @@
         │   │   │   │   └── end_keyword_loc: (89,0)-(89,3) = "end"
         │   │   │   └── end_keyword_loc: (89,0)-(89,3) = "end"
         │   │   ├── opening_loc: (87,2)-(87,4) = "do"
-        │   │   └── closing_loc: (89,0)-(89,3) = "end"
+        │   │   ├── closing_loc: (89,0)-(89,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         ├── @ CallNode (location: (90,0)-(93,3))
         │   ├── receiver: ∅
@@ -1341,7 +1369,8 @@
         │   │   │   │   └── end_keyword_loc: (93,0)-(93,3) = "end"
         │   │   │   └── end_keyword_loc: (93,0)-(93,3) = "end"
         │   │   ├── opening_loc: (90,2)-(90,4) = "do"
-        │   │   └── closing_loc: (93,0)-(93,3) = "end"
+        │   │   ├── closing_loc: (93,0)-(93,3) = "end"
+        │   │   └── numbered_parameters: 0
         │   └── flags: ∅
         └── @ CallNode (location: (94,0)-(96,1))
             ├── receiver: ∅
@@ -1378,5 +1407,6 @@
             │   │           ├── block: ∅
             │   │           └── flags: ∅
             │   ├── opening_loc: (94,4)-(94,5) = "{"
-            │   └── closing_loc: (96,0)-(96,1) = "}"
+            │   ├── closing_loc: (96,0)-(96,1) = "}"
+            │   └── numbered_parameters: 2
             └── flags: ∅