Indentation rework (#1562)

* WIP: Rework indentation system

* Add ComplexNode for context-aware indentation (including a proof of concept for assignment statements in rust)

* Add switch statements to Go indents.toml (fixes the second half of issue #1523)
Remove commented-out code

* Migrate all existing indentation queries.
Add more options to ComplexNode and use them to improve C/C++ indentation.

* Add comments & replace Option<Vec<_>> with Vec<_>

* Add more detailed documentation for tree-sitter indentation

* Improve code style in indent.rs

* Use tree-sitter queries for indentation instead of TOML config.
Migrate existing indent queries.

* Add documentation for the new indent queries.
Change xtask docgen to look for indents.scm instead of indents.toml

* Improve code style in indent.rs.
Fix an issue with the rust indent query.

* Move indentation test sources to separate files.
Add `#not-kind-eq?`, `#same-line?` and `#not-same-line` custom predicates.
Improve the rust and c indent queries.

* Fix indent test.
Improve rust indent queries.

* Move indentation tests to integration test folder.

* Improve code style in indent.rs.
Reuse tree-sitter cursors for indentation queries.

* Migrate HCL indent query

* Replace custom loading in indent tests with a designated languages.toml

* Update indent query file name for --health command.

* Fix single-space formatting in indent queries.

* Add explanation for unwrapping.

Co-authored-by: Triton171 <triton0171@gmail.com>

2 files changed, 22 insertions, 23 deletions

diff --git a/runtime/queries/scala/indents.scm b/runtime/queries/scala/indents.scm
new file mode 100644
index 00000000..3449cfa7
--- /dev/null
+++ b/runtime/queries/scala/indents.scm
@@ -0,0 +1,22 @@
+[
+  (block)
+  (arguments)
+  (parameter)
+  (class_definition)
+  (trait_definition)
+  (object_definition)
+  (function_definition)
+  (val_definition)
+  (import_declaration)
+  (while_expression)
+  (do_while_expression)
+  (for_expression)
+  (try_expression)
+  (match_expression)
+] @indent
+
+[
+  "}"
+  "]"
+  ")"
+] @outdent
diff --git a/runtime/queries/scala/indents.toml b/runtime/queries/scala/indents.toml
deleted file mode 100644
index 6de54844..00000000
--- a/runtime/queries/scala/indents.toml
+++ /dev/null
@@ -1,23 +0,0 @@
-
-indent = [
- "block",
- "arguments",
- "parameter",
- "class_definition",
- "trait_definition",
- "object_definition",
- "function_definition",
- "val_definition",
- "import_declaration",
- "while_expression",
- "do_while_expression",
- "for_expression",
- "try_expression",
- "match_expression"
-]
-
-outdent = [
- "}",
- "]",
- ")"
-]