lint: fix remaining 5 lint errors

src/MusicalScore/MusicSheet.ts

@@ -447,7 +447,7 @@ export class MusicSheet /*implements ISettableMusicSheet, IComparable<MusicSheet
         }
         return this.userStartTempoInBPM;
     }
-    public get Errors(): { [n: number]: string[]; } {
+    public get Errors(): { [n: number]: string[] } {
         return this.musicSheetErrors.measureErrors;
     }
     public get FirstMeasureNumber(): number {

src/MusicalScore/MusicSource/Repetition.ts

@@ -19,7 +19,7 @@ export class Repetition extends PartListEntry /*implements IRepetition*/ {
 
     private backwardJumpInstructions: RepetitionInstruction[] = [];
     private endingParts: RepetitionEndingPart[] = [];
-    private endingIndexDict: { [_: number]: RepetitionEndingPart; } = {};
+    private endingIndexDict: { [_: number]: RepetitionEndingPart } = {};
     private userNumberOfRepetitions: number = 0;
     private visibles: boolean[] = [];
     private fromWords: boolean = false;
@@ -31,7 +31,7 @@ export class Repetition extends PartListEntry /*implements IRepetition*/ {
     public get BackwardJumpInstructions(): RepetitionInstruction[] {
         return this.backwardJumpInstructions;
     }
-    public get EndingIndexDict(): { [_: number]: RepetitionEndingPart; } {
+    public get EndingIndexDict(): { [_: number]: RepetitionEndingPart } {
         return this.endingIndexDict;
     }
     public get EndingParts(): RepetitionEndingPart[] {

src/MusicalScore/ScoreIO/MusicSheetReader.ts

@@ -712,9 +712,9 @@ export class MusicSheetReader /*implements IMusicSheetReader*/ {
      * @param entryList
      * @returns {{}}
      */
-    private createInstrumentGroups(entryList: IXmlElement[]): { [_: string]: Instrument; } {
+    private createInstrumentGroups(entryList: IXmlElement[]): { [_: string]: Instrument } {
         let instrumentId: number = 0;
-        const instrumentDict: { [_: string]: Instrument; } = {};
+        const instrumentDict: { [_: string]: Instrument } = {};
         let currentGroup: InstrumentalGroup;
         try {
             const entryArray: IXmlElement[] = entryList;