add tests

crates/solidity/testing/snapshots/cst_output/UnnamedFunctionDefinition/private_attribute/generated/0.4.11-success.yml

@@ -0,0 +1,23 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ function () private {}                                                           │ 0..22
+
+Errors: []
+
+Tree:
+  - (UnnamedFunctionDefinition): # "function () private {}\n" (0..23)
+      - (function_keyword꞉ FunctionKeyword): "function" # (0..8)
+      - (parameters꞉ ParametersDeclaration): # " ()" (8..11)
+          - (LeadingTrivia) ► (Whitespace): " " # (8..9)
+          - (open_paren꞉ OpenParen): "(" # (9..10)
+          - (close_paren꞉ CloseParen): ")" # (10..11)
+      - (attributes꞉ UnnamedFunctionAttributes): # " private" (11..19)
+          - (item꞉ UnnamedFunctionAttribute): # " private" (11..19)
+              - (LeadingTrivia) ► (Whitespace): " " # (11..12)
+              - (variant꞉ PrivateKeyword): "private" # (12..19)
+      - (body꞉ FunctionBody) ► (variant꞉ Block): # " {}\n" (19..23)
+          - (LeadingTrivia) ► (Whitespace): " " # (19..20)
+          - (open_brace꞉ OpenBrace): "{" # (20..21)
+          - (close_brace꞉ CloseBrace): "}" # (21..22)
+          - (TrailingTrivia) ► (EndOfLine): "\n" # (22..23)

crates/solidity/testing/snapshots/cst_output/UnnamedFunctionDefinition/private_attribute/generated/0.5.0-failure.yml

@@ -0,0 +1,23 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ function () private {}                                                           │ 0..22
+
+Errors: # 1 total
+  - >
+    Error: Expected ExternalKeyword or Identifier or OpenBrace or OverrideKeyword or PayableKeyword or PureKeyword or Semicolon or ViewKeyword.
+       ╭─[crates/solidity/testing/snapshots/cst_output/UnnamedFunctionDefinition/private_attribute/input.sol:1:12]
+       │
+     1 │ function () private {}
+       │            ──────┬─────  
+       │                  ╰─────── Error occurred here.
+    ───╯
+
+Tree:
+  - (UnnamedFunctionDefinition): # "function () private {}\n" (0..23)
+      - (function_keyword꞉ FunctionKeyword): "function" # (0..8)
+      - (parameters꞉ ParametersDeclaration): # " ()" (8..11)
+          - (LeadingTrivia) ► (Whitespace): " " # (8..9)
+          - (open_paren꞉ OpenParen): "(" # (9..10)
+          - (close_paren꞉ CloseParen): ")" # (10..11)
+      - (SKIPPED): " private {}\n" # (11..23)

crates/solidity/testing/snapshots/cst_output/UnnamedFunctionDefinition/private_attribute/generated/0.6.0-failure.yml

@@ -0,0 +1,17 @@
+# This file is generated automatically by infrastructure scripts. Please don't edit by hand.
+
+Source: >
+  1  │ function () private {}                                                           │ 0..22
+
+Errors: # 1 total
+  - >
+    Error: Expected end of file.
+       ╭─[crates/solidity/testing/snapshots/cst_output/UnnamedFunctionDefinition/private_attribute/input.sol:1:1]
+       │
+     1 │ function () private {}
+       │ ───────────┬───────────  
+       │            ╰───────────── Error occurred here.
+    ───╯
+
+Tree:
+  - (SKIPPED): "function () private {}\n" # (0..23)

crates/solidity/testing/snapshots/cst_output/UnnamedFunctionDefinition/private_attribute/input.sol

@@ -0,0 +1 @@
+function () private {}