Add changelog to dart spec file.

docs/language/dartLangSpec.tex

Index: docs/language/dartLangSpec.tex
diff --git a/docs/language/dartLangSpec.tex b/docs/language/dartLangSpec.tex
index 3b6bc08515106c556d69c367f6e6d85f4fb3641f..0be42f230f2cd37f707b2d400bfa14b0d01b00b8 100644
--- a/docs/language/dartLangSpec.tex
+++ b/docs/language/dartLangSpec.tex
@@ -15,6 +15,53 @@
 % commands \LMHash and \LMLabel), see the long comment at the
 % end of this file.
 
+% CHANGES
+% =======
+% Significant changes to the specification.
+%
+% 1.15
+% - Change how language specification describes control flow.
+% - Object initialization now specifies initialization order correctly.
+% - Specifies that leaving an await-for loop must wait for the subscription
+%   to be cancelled.
+% - An await-for loop only pauses the subscription if it does something async.
+% - Assert statments may now also include a "message" operand.
+% - The Null type is now considered a subtype of all types in most cases.
+%
+% 1.14
+% - The call "C()" where "C" is a class name, is a now compile-time error.
+% - Changed description of rewrites that depended on a function literal.
+%   In many cases, the rewrite wasn't safe for asynchronous code.
+% - Removed generalized tear-offs.
+% - Allow "rethrow" to also end a switch case. Allow braces around switch cases.
+% - Allow using '=' as default-value separator for named parameters.
+% - Make it a compile-time error if a libray includes the same part twice.
+% - Now more specific about the return types of sync*/async/async* functions
+%   in relation to return statements.
+% - Allow Unicode surrogate values in String literals.
+% - Make an initializing formal's value accessible in the initializer list.
+% - Allow any expression in assert statements (was only conditionalExpression).
+% - Allow trailing commas in argument and parameter lists.
+%
+% 1.11
+% - Specify that potentially constant expressions must be valid expressions
+%   if the parmameters are non-constant.

[Kevin Millikin (Google), 2017/01/23 11:05:22]

parmameters => parameters

+% - Make "??" a compie-time constant operator.
+% - Having multiple unnamed libraries no longer causes warnings.
+% - Specify null-aware operators for static methods.
+%
+% 1.10
+% - Allow mixins to have super-classes and super-calls.
+% - Specify static type checking for the implicit for-in iterator variable.
+% - Specify static types for a number of expressions where it was missing.
+% - Make calls on the exact type "Function" not cause warnings.
+% - Specify null-aware behavior of "e?.v++" and similar expressions.
+% - Specify that `package:` URIs are treated in an implementation dependent way.
+% - Require warning if for-in is used on object with no "iterator" member.
+%
+% 1.9
+% - Ecma TC52 - 3rd Edition of the Dart specification.
+
 \begin{document}
 \maketitle
 \tableofcontents