pkg/dart_style: update to latest analyzer

CHANGELOG.md

Index: CHANGELOG.md
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9043ff149f0181181899812964b8ed507285f9b5..a0fee133da05b3ab3156a0364e81091b4898c74c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
-# 0.1.8-dev
+# 0.1.8
 
-* Update to latest args.
+* Update to latest `analyzer` and `args` packages.
 * Allow cascades with repeated method names to be one line.
 
 # 0.1.7
@@ -10,9 +10,9 @@
 * Optimize formatting deeply nested expressions (#108).
 * Discard unused nesting level to improve performance (#108).
 * Discard unused spans to improve performance (#108).
-* Harden splits that containg too much nesting (#108).
+* Harden splits that contain too much nesting (#108).
 * Try to avoid splitting single-element lists (#211).
-* Avoid splitting when the first argument is a function expression (#211). 
+* Avoid splitting when the first argument is a function expression (#211).
 
 # 0.1.6
 
@@ -34,7 +34,7 @@
 * Support `await for` statements (#154).
 * Don't delete commas between enum values with doc comments (#171).
 * Put a space between nested unary `-` calls (#170).
-* Allow `-t` flag to preserve compability with old formatter (#166).
+* Allow `-t` flag to preserve compatibility with old formatter (#166).
 * Support `--machine` flag for machine-readable output (#164).
 * If no paths are provided, read source from stdin (#165).