Follow-up from 7d6f11d, add space between 'map' and left brace,

per feedback by Dmitri.

Author: akyrtzi

Diff for: lib/Sema/CSDiag.cpp

@@ -3178,7 +3178,7 @@ static void tryRawRepresentableFixIts(InFlightDiagnostic &diag,
         diag.fixItInsert(exprRange.Start, "(");
         mapCodeFix += ")";
       }
-      mapCodeFix += ".map{ ";
+      mapCodeFix += ".map { ";
       mapCodeFix += convWrapBefore;
       mapCodeFix += "$0";
       mapCodeFix += convWrapAfter;

Diff for: test/FixCode/fixits-apply.swift.result

@@ -57,22 +57,22 @@ func testMask6(a: Int) {
   sendItOpt(MyEventMask2(rawValue: UInt64(a)))
 }
 func testMask7(a: Int?) {
-  sendItOpt(a.map{ MyEventMask2(rawValue: UInt64($0)) })
+  sendItOpt(a.map { MyEventMask2(rawValue: UInt64($0)) })
 }
 func testMask8(a: UInt64?) {
-  sendItOpt(a.map{ MyEventMask2(rawValue: $0) })
+  sendItOpt(a.map { MyEventMask2(rawValue: $0) })
 }
 func testMask9(a: Any) {
-  sendItOpt((a as? Int).map{ MyEventMask2(rawValue: UInt64($0)) })
+  sendItOpt((a as? Int).map { MyEventMask2(rawValue: UInt64($0)) })
 }
 func testMask10(a: Int?) {
   sendIt(a) // no fix, nullability mismatch.
 }
 func testMask11(a: MyEventMask2?) {
-  testMask7(a: a.map{ UInt64($0.rawValue) })
+  testMask7(a: a.map { UInt64($0.rawValue) })
 }
 func testMask12(a: MyEventMask2?) {
-  testMask8(a: a.map{ $0.rawValue })
+  testMask8(a: a.map { $0.rawValue })
 }
 func testMask13(a: MyEventMask2?) {
   testMask1(a: a) // no fix, nullability mismatch.