Add an optional --debug-mozjs argument to mach build that enables a non-optimized, debug build of mozjs and rust-mozjs. Update the Cargo snapshot to enable new feature support.

components/layout/block.rs

@@ -13,17 +13,17 @@
 //! "CSS 2.1" or "CSS 2.2" refers to the editor's draft of the W3C "Cascading Style Sheets Level 2
 //! Revision 2 (CSS 2.2) Specification" available here:
 //!
-//!     http://dev.w3.org/csswg/css2/
+//!   http://dev.w3.org/csswg/css2/
 //!
 //! "INTRINSIC" refers to L. David Baron's "More Precise Definitions of Inline Layout and Table
 //! Layout" available here:
 //!
-//!     http://dbaron.org/css/intrinsic/
+//!   http://dbaron.org/css/intrinsic/
 //!
 //! "CSS-SIZING" refers to the W3C "CSS Intrinsic & Extrinsic Sizing Module Level 3" document
 //! available here:
 //!
-//!     http://dev.w3.org/csswg/css-sizing/
+//!   http://dev.w3.org/csswg/css-sizing/
 
 #![deny(unsafe_block)]
 

components/layout/table_wrapper.rs

@@ -7,7 +7,7 @@
 //! This follows the "More Precise Definitions of Inline Layout and Table Layout" proposal written
 //! by L. David Baron (Mozilla) here:
 //!
-//!     http://dbaron.org/css/intrinsic/
+//!   http://dbaron.org/css/intrinsic/
 //!
 //! Hereafter this document is referred to as INTRINSIC.
 

components/script/Cargo.toml

@@ -9,6 +9,9 @@ build = "make -f makefile.cargo"
 name = "script"
 path = "lib.rs"
 
+[features]
+debugmozjs = ['js/debugmozjs']
+
 [dependencies.plugins]
 path = "../plugins"
 

components/style/selector_matching.rs

@@ -583,29 +583,29 @@ fn matches_compound_selector<'a,E,N>(selector: &CompoundSelector,
 
 /// A result of selector matching, includes 3 failure types,
 ///
-///     NotMatchedAndRestartFromClosestLaterSibling
-///     NotMatchedAndRestartFromClosestDescendant
-///     NotMatchedGlobally
+///   NotMatchedAndRestartFromClosestLaterSibling
+///   NotMatchedAndRestartFromClosestDescendant
+///   NotMatchedGlobally
 ///
 /// When NotMatchedGlobally appears, stop selector matching completely since
 /// the succeeding selectors never matches.
 /// It is raised when
-///     Child combinator cannot find the candidate element.
-///     Descendant combinator cannot find the candidate element.
+///   Child combinator cannot find the candidate element.
+///   Descendant combinator cannot find the candidate element.
 ///
 /// When NotMatchedAndRestartFromClosestDescendant appears, the selector
 /// matching does backtracking and restarts from the closest Descendant
 /// combinator.
 /// It is raised when
-///     NextSibling combinator cannot find the candidate element.
-///     LaterSibling combinator cannot find the candidate element.
-///     Child combinator doesn't match on the found element.
+///   NextSibling combinator cannot find the candidate element.
+///   LaterSibling combinator cannot find the candidate element.
+///   Child combinator doesn't match on the found element.
 ///
 /// When NotMatchedAndRestartFromClosestLaterSibling appears, the selector
 /// matching does backtracking and restarts from the closest LaterSibling
 /// combinator.
 /// It is raised when
-///     NextSibling combinator doesn't match on the found element.
+///   NextSibling combinator doesn't match on the found element.
 ///
 /// For example, when the selector "d1 d2 a" is provided and we cannot *find*
 /// an appropriate ancestor node for "d1", this selector matching raises