[SourceKit] Fix formatting issues

Author: Simon Barinka

test/SourceKit/CursorInfo/cursor_stdlib.swift

@@ -244,7 +244,6 @@ let dictNonCost = [1:2, 3:d]
 // CHECK-OBJ-LITERAL-NEXT: AppKit
 // CHECK-OBJ-LITERAL-NEXT: SYSTEM
 
-
 // RUN: %sourcekitd-test_plain -req=cursor -pos=27:18 %s -- %s -sdk %sdk | %FileCheck -check-prefix=CHECK-ARRAY1 %s
 // CHECK-ARRAY1: source.lang.swift.ref.function.constructor
 // CHECK-ARRAY1-NEXT: init(arrayLiteral:)

tools/SourceKit/lib/SwiftLang/SwiftSourceDocInfo.cpp

@@ -1671,7 +1671,7 @@ static void resolveCursor(
       case CursorInfoKind::ExprStart:
       case CursorInfoKind::StmtStart: {
         // If code under cursor is literal expression returns Expr,
-        // otherwise nullptr
+        // otherwise nullptr.
         auto tryGetLiteralExpr = [](auto CI) -> Expr * {
           auto *ExprInfo = dyn_cast<ResolvedExprStartCursorInfo>(CI);
           if (!ExprInfo || !ExprInfo->getTrailingExpr()) {
@@ -1700,7 +1700,7 @@ static void resolveCursor(
           Data.AvailableActions = Actions;
         }
 
-        // Handle literal expression
+        // Handle literal expression.
         if (auto *LitExpr = tryGetLiteralExpr(CursorInfo)) {
           bool Success = addCursorInfoForLiteral(Data, LitExpr, Lang, CompInvok,
                                                  CursorInfo->getLoc(),