fix eslint warnigs for core project (#7506)

lib/core/pipes/file-size.pipe.spec.ts

@@ -23,7 +23,7 @@ describe('FileSizePipe', () => {
 
     beforeEach(() => {
         const translation: any = {
-            instant(key) {
+            instant: (key: string) => {
                 const enUs = {
                     'CORE.FILE_SIZE.BYTES': 'Bytes',
                     'CORE.FILE_SIZE.KB': 'KB',

lib/core/pipes/node-name-tooltip.pipe.spec.ts

@@ -35,7 +35,7 @@ describe('NodeNameTooltipPipe', () => {
     });
 
     it('should not transform when missing node entry', () => {
-        expect(pipe.transform(<any> {})).toBe(null);
+        expect(pipe.transform({} as any)).toBe(null);
     });
 
     it('should use title and description when all fields present', () => {
@@ -57,8 +57,8 @@ describe('NodeNameTooltipPipe', () => {
             entry: {
                 name: nodeName
             }
-        };
-        const tooltip = pipe.transform(<NodeEntry> node);
+        } as NodeEntry;
+        const tooltip = pipe.transform(node);
         expect(tooltip).toBe(nodeName);
     });
 

lib/core/pipes/node-name-tooltip.pipe.ts

@@ -31,9 +31,7 @@ export class NodeNameTooltipPipe implements PipeTransform {
     }
 
     private containsLine(lines: string[], line: string): boolean {
-        return lines.some((item: string) => {
-            return item.toLowerCase() === line.toLowerCase();
-        });
+        return lines.some((item: string) => item.toLowerCase() === line.toLowerCase());
     }
 
     private removeDuplicateLines(lines: string[]): string[] {