Add Yosys linter for Verilog files. (#3713)

* Add yosys for verilog files.

* Add handler test for yosys.

* fix typo in yosys handler test

* fix array order in yosys handler test

* add yosys linter to filetype defaults test

* fix duplicate tag

* add 'yosys' to 'ale-supported-languages-and-tools.txt'

2 files changed, 28 insertions, 1 deletions

diff --git a/test/handler/test_yosys_handler.vader b/test/handler/test_yosys_handler.vader
new file mode 100644
index 00000000..a55d0b5b
--- /dev/null
+++ b/test/handler/test_yosys_handler.vader
@@ -0,0 +1,27 @@
+Before:
+  runtime ale_linters/verilog/yosys.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The yosys handler should parse lines correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 3,
+  \     'type': 'E',
+  \     'text': 'syntax error, unexpected TOK_ID',
+  \     'filename': 'file.v'
+  \   },
+  \   {
+  \     'lnum': 1,
+  \     'type': 'E',
+  \     'text': 'internal error',
+  \   },
+  \ ],
+  \ ale_linters#verilog#yosys#Handle(bufnr(''), [
+  \   '1. Executing Verilog-2005 frontend: file.v',
+  \   'ERROR: internal error',
+  \   'file.v:3: ERROR: syntax error, unexpected TOK_ID',
+  \ ])
+
diff --git a/test/test_filetype_linter_defaults.vader b/test/test_filetype_linter_defaults.vader
index 419800de..563a093f 100644
--- a/test/test_filetype_linter_defaults.vader
+++ b/test/test_filetype_linter_defaults.vader
@@ -61,7 +61,7 @@ Execute(The defaults for the zsh filetype should be correct):
 Execute(The defaults for the verilog filetype should be correct):
   " This filetype isn't configured with default, so we can test loading all
   " available linters with this.
-  AssertEqual ['hdl-checker', 'iverilog', 'verilator', 'vlog', 'xvlog'], GetLinterNames('verilog')
+  AssertEqual ['hdl-checker', 'iverilog', 'verilator', 'vlog', 'xvlog', 'yosys'], GetLinterNames('verilog')
 
   let g:ale_linters_explicit = 1