fix($compile): Fix namespace detection for achor elements

[feelepxyz]

Fixed a bug where anchor elements with SVG in the href attribute got incorrectly detected as svgs. Seems the detection only happens when the anchor element has a child that needs to be transcluded.

Calling node.toString() on a anchor returns the href value instead of the expected [object HTMLAnchorElement].

Added a test for this edge case.

Plunker to reproduce: http://plnkr.co/edit/OBgCS8phjTwMTFYwhk6D

[lgalfaso]

Just

return nodeName_(node) !== 'foreignobject' && toString.call(node).match(/SVG/) ? 'svg' : 'html';

should make it

[feelepxyz]

@lgalfaso sorted. Added a commit for the same fix in ngInclude, but looking at that code: the function namespaceAdaptedClone doesn't seem to be defined anywhere in the codebase.. is this directive ever used? :)

[lgalfaso]

@harrison the only reference of namespaceAdaptedClone is within src/ng/ngInclude.js, do not know how this is related to this PR.

One more thing, can you please name the test something like "should handle anchor elements inside svg elements"?

[feelepxyz]

@lgalfaso not related just curious if it's useless code:)

The issue happens with the ngIf/transclusion on the span which wrongly detects the parent anchor as being an svg. Changed it to transclusions should not detect parent anchor elements as SVGs, happy to change.

[lgalfaso]

@harrison can you please squash everything into one commit? this makes things easier. Otherwise this looks good and should merge early next week