DevTools: [CodeMirror] roll comment plugin to @7dfbf42

Source/devtools/front_end/cm/comment.js

Index: Source/devtools/front_end/cm/comment.js
diff --git a/Source/devtools/front_end/cm/comment.js b/Source/devtools/front_end/cm/comment.js
index d7f569cc005343441cebd845fb5342da0a313c29..2dd114d332dc9b1e0b19cfff3fc60061c7cb9fbe 100644
--- a/Source/devtools/front_end/cm/comment.js
+++ b/Source/devtools/front_end/cm/comment.js
@@ -109,7 +109,7 @@
   CodeMirror.defineExtension("uncomment", function(from, to, options) {
     if (!options) options = noOptions;
     var self = this, mode = self.getModeAt(from);
-    var end = Math.min(to.line, self.lastLine()), start = Math.min(from.line, end);
+    var end = Math.min(to.ch != 0 || to.line == from.line ? to.line : to.line - 1, self.lastLine()), start = Math.min(from.line, end);
 
     // Try finding line comments
     var lineString = options.lineComment || mode.lineComment, lines = [];