Improved Xcode support
Improved Xcode support

Added definition for raw string.
Added definitions for function and method declarations.
Enabled function, method, and type declarations to appear in Editor pop up menu.
Fixes Issue 466.

R=golang-dev, gri
CC=golang-dev
http://codereview.appspot.com/183065

Committer: Robert Griesemer <a6752097faebf1f02d80107d77a9be009089afe3@golang.org>

tianon/debian-golang,h8liu/golang,bdwalton/debian-golang,pombredanne/go-deleteme,ssrl/go,tianon/debian-golang,tv42/old-go,tianon/debian-golang,ssrl/go,dsriram/golang,apparentlymart/golang,h8liu/golang,tianon/debian-golang,pombredanne/go-deleteme,dsriram/golang,nightlyone/golang,gnanderson/go,dsriram/golang,gnanderson/go,bdwalton/debian-golang,apparentlymart/golang,tv42/old-go,tv42/old-go,pombredanne/go-deleteme,gnanderson/go,h8liu/golang,tv42/old-go,bdwalton/debian-golang,ssrl/go,tianon/debian-golang,pombredanne/go-deleteme,tianon/debian-golang,tv42/old-go,tv42/old-go,gnanderson/go,nightlyone/golang,ssrl/go,h8liu/golang,apparentlymart/golang,apparentlymart/golang,nightlyone/golang,dsriram/golang,pombredanne/go-deleteme,pombredanne/go-deleteme,h8liu/golang,ssrl/go,apparentlymart/golang,pombredanne/go-deleteme,bdwalton/debian-golang,dsriram/golang,apparentlymart/golang,tianon/debian-golang,nightlyone/golang,bdwalton/debian-golang,bdwalton/debian-golang,dsriram/golang,bdwalton/debian-golang,ssrl/go,gnanderson/go,gnanderson/go,nightlyone/golang,nightlyone/golang,dsriram/golang,nightlyone/golang,h8liu/golang,tv42/old-go,bdwalton/debian-golang,ssrl/go,h8liu/golang,apparentlymart/golang,gnanderson/go,tianon/debian-golang