test: Demo line-ignore behavior

Author: epage

crates/typos-cli/tests/cmd/ignore-line.in/_typos.toml

@@ -0,0 +1,5 @@
+[default]
+extend-ignore-re = ["(?Rm)^.*# spellchecker:disable-line$"]
+
+[default.extend-identifiers]
+hello = "goodbye"

crates/typos-cli/tests/cmd/ignore-line.in/file.ignore

@@ -0,0 +1,3 @@
+hello
+hello  # spellchecker:disable-line
+hello

crates/typos-cli/tests/cmd/ignore-line.toml

@@ -0,0 +1,18 @@
+bin.name = "typos"
+stdin = ""
+stdout = """
+error: `hello` should be `goodbye`
+  --> ./file.ignore:1:1
+  |
+1 | hello
+  | ^^^^^
+  |
+error: `hello` should be `goodbye`
+  --> ./file.ignore:3:1
+  |
+3 | hello
+  | ^^^^^
+  |
+"""
+stderr = ""
+status.code = 2