Add tests for ast-grep rules (nushell#16817)

- Updated schema urls to use `rust_rule`, which provides tree-sitter
node name completions.
- Added tests for all existing lints.
- Ran tests and generated snapshots

Author: Bahex

ast-grep/rules/format-in-nu-macro.yml

@@ -0,0 +1,22 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rust_rule.json
+
+id: format-in-nu-macro
+language: rust
+severity: error
+message: "`nu!` macro already supports format strings, use of `format!` is unnecessary"
+
+rule:
+  pattern:
+    context: $FORMAT!($$$_)
+    selector: identifier
+  kind: identifier
+  regex: "^format$"
+  inside:
+    stopBy: end
+    kind: token_tree
+    inside:
+      pattern: nu!($$$_)
+
+labels:
+  FORMAT:
+    style: primary

ast-grep/rules/if-matches-chain.yml

@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rule.json
+# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rust_rule.json
 
 id: if-matches-chain
 language: rust

ast-grep/rules/if-matches.yml

@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rule.json
+# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rust_rule.json
 
 id: if-matches
 language: rust

ast-grep/rules/internal_span.yml

@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rule.json
+# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rust_rule.json
 
 id: internal_span
 language: rust

ast-grep/rules/let-if-let.yml

@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rule.json
+# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rust_rule.json
 
 id: let-if-let-some
 language: rust

ast-grep/rules/long-string.yml

@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rule.json
+# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rust_rule.json
 
 id: long-string
 language: rust

ast-grep/rules/span-unknown.yml

@@ -1,4 +1,4 @@
-# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rule.json
+# yaml-language-server: $schema=https://raw.githubusercontent.com/ast-grep/ast-grep/main/schemas/rust_rule.json
 
 id: span-unknown
 language: rust

ast-grep/tests/__snapshots__/format-in-nu-macro-snapshot.yml

@@ -0,0 +1,13 @@
+id: format-in-nu-macro
+snapshots:
+  ? |
+    let actual = nu!(format!(
+        r#"{sample}
+        | chunk-by {{|it| $it.cool}}
+        | length"#,
+    ));
+  : labels:
+    - source: format
+      style: primary
+      start: 17
+      end: 23

ast-grep/tests/__snapshots__/if-matches-chain-snapshot.yml

@@ -0,0 +1,26 @@
+id: if-matches-chain
+snapshots:
+  ? |
+    if matches!(shape, SyntaxShape::Closure(_)) {
+      parse_closure();
+    } else if matches!(shape, SyntaxShape::Block(_)) {
+      parse_block();
+    } else if matches!(shape, SyntaxShape::MatchBlock) {
+      parse_match_block();
+    } else {
+      parse_other();
+    }
+  : labels:
+    - source: |-
+        if matches!(shape, SyntaxShape::Closure(_)) {
+          parse_closure();
+        } else if matches!(shape, SyntaxShape::Block(_)) {
+          parse_block();
+        } else if matches!(shape, SyntaxShape::MatchBlock) {
+          parse_match_block();
+        } else {
+          parse_other();
+        }
+      style: primary
+      start: 0
+      end: 236

ast-grep/tests/__snapshots__/if-matches-snapshot.yml

@@ -0,0 +1,28 @@
+id: if-matches
+snapshots:
+  ? |
+    if matches!(shape, SyntaxShape::Closure(_)) {
+      parse_closure();
+    } else {
+      dont();
+    }
+  : fixed: |
+      if let SyntaxShape::Closure(_) = shape {
+        parse_closure();
+      } else {
+        dont();
+      }
+    labels:
+    - source: matches!(shape, SyntaxShape::Closure(_))
+      style: primary
+      start: 3
+      end: 43
+    - source: |-
+        if matches!(shape, SyntaxShape::Closure(_)) {
+          parse_closure();
+        } else {
+          dont();
+        }
+      style: secondary
+      start: 0
+      end: 85