Add colon before inlay hints

Author: fwcd

Sources/SourceKitLSP/Swift/SwiftLanguageServer.swift

@@ -1233,7 +1233,7 @@ extension SwiftLanguageServer {
             InlayHint(
               position: info.range.upperBound,
               kind: .type,
-              label: info.printedType
+              label: ": \(info.printedType)"
             )
           }
 

Tests/SourceKitLSPTests/InlayHintTests.swift

@@ -77,12 +77,12 @@ final class InlayHintTests: XCTestCase {
       InlayHint(
         position: Position(line: 0, utf16index: 5),
         kind: .type,
-        label: "Int"
+        label: ": Int"
       ),
       InlayHint(
         position: Position(line: 1, utf16index: 5),
         kind: .type,
-        label: "String"
+        label: ": String"
       ),
     ])
   }
@@ -106,12 +106,12 @@ final class InlayHintTests: XCTestCase {
       InlayHint(
         position: Position(line: 6, utf16index: 10),
         kind: .type,
-        label: "Bool"
+        label: ": Bool"
       ),
       InlayHint(
         position: Position(line: 7, utf16index: 12),
         kind: .type,
-        label: "Int"
+        label: ": Int"
       )
     ])
   }
@@ -137,27 +137,27 @@ final class InlayHintTests: XCTestCase {
       InlayHint(
         position: Position(line: 1, utf16index: 20),
         kind: .type,
-        label: "Int"
+        label: ": Int"
       ),
       InlayHint(
         position: Position(line: 2, utf16index: 25),
         kind: .type,
-        label: "String"
+        label: ": String"
       ),
       InlayHint(
         position: Position(line: 6, utf16index: 20),
         kind: .type,
-        label: "String"
+        label: ": String"
       ),
       InlayHint(
         position: Position(line: 7, utf16index: 25),
         kind: .type,
-        label: "Int"
+        label: ": Int"
       ),
       InlayHint(
         position: Position(line: 11, utf16index: 25),
         kind: .type,
-        label: "Double"
+        label: ": Double"
       ),
     ])
   }
@@ -189,22 +189,22 @@ final class InlayHintTests: XCTestCase {
       InlayHint(
         position: Position(line: 2, utf16index: 5),
         kind: .type,
-        label: "(Int) -> ()"
+        label: ": (Int) -> ()"
       ),
       InlayHint(
         position: Position(line: 3, utf16index: 31),
         kind: .type,
-        label: "String"
+        label: ": String"
       ),
       InlayHint(
         position: Position(line: 4, utf16index: 40),
         kind: .type,
-        label: "Double"
+        label: ": Double"
       ),
       InlayHint(
         position: Position(line: 4, utf16index: 43),
         kind: .type,
-        label: "Double"
+        label: ": Double"
       )
     ])
   }