Update

syntax/swift.vim

@@ -152,7 +152,6 @@ syntax keyword swiftKeywords
       \ public
       \ repeat
       \ required
-      \ rethrows
       \ return
       \ self
       \ set
@@ -161,7 +160,6 @@ syntax keyword swiftKeywords
       \ super
       \ switch
       \ throw
-      \ throws
       \ try
       \ typealias
       \ unowned
@@ -171,6 +169,10 @@ syntax keyword swiftKeywords
       \ while
       \ willSet
 
+syntax keyword swiftDefinitionModifier
+      \ rethrows
+      \ throws
+
 syntax match swiftMultiwordKeywords "indirect case"
 syntax match swiftMultiwordKeywords "indirect enum"
 " }}}
@@ -226,6 +228,7 @@ syntax region swiftGenericsWrapper start="\v\<" end="\v\>" contains=swiftType tr
 syntax region swiftLiteralWrapper start="\v\=\s*" skip="\v[^\[\]]\(\)" end="\v(\[\]|\(\))" contains=ALL transparent oneline
 syntax region swiftReturnWrapper start="\v-\>\s*" end="\v(\{|$)" contains=swiftType transparent oneline
 syntax match swiftType "\v<\u\w*" contained containedin=swiftTypeWrapper,swiftLiteralWrapper,swiftGenericsWrapper,swiftTypeCastWrapper
+syntax match swiftTypeDeclaration /->/ skipwhite nextgroup=swiftType
 
 syntax keyword swiftImports import
 syntax keyword swiftCastKeyword is as contained
@@ -255,6 +258,7 @@ highlight default link swiftMarker Comment
 
 highlight default link swiftString String
 highlight default link swiftInterpolatedWrapper Delimiter
+highlight default link swiftTypeDeclaration Delimiter
 highlight default link swiftNumber Number
 highlight default link swiftBoolean Boolean
 
@@ -273,6 +277,7 @@ highlight default link swiftPreprocessor PreProc
 highlight default link swiftMethod Function
 highlight default link swiftProperty Identifier
 
+highlight default link swiftDefinitionModifier Define
 highlight default link swiftConditionStatement PreProc
 highlight default link swiftAvailability Normal
 highlight default link swiftAvailabilityArg Normal