chore: remove leftover 'md-' prefixes (#9004)

Author: rafaelss95

src/cdk/stepper/stepper.ts

@@ -121,8 +121,8 @@ export class CdkStep implements OnChanges {
   }
 
   ngOnChanges() {
-    // Since basically all inputs of the MdStep get proxied through the view down to the
-    // underlying MdStepHeader, we have to make sure that change detection runs correctly.
+    // Since basically all inputs of the MatStep get proxied through the view down to the
+    // underlying MatStepHeader, we have to make sure that change detection runs correctly.
     this._stepper._stateChanged();
   }
 }

src/demo-app/a11y/table/table-a11y.html

@@ -28,8 +28,8 @@ <h2>Sortable Table</h2>
     <mat-table [dataSource]="sortDataSource"
               aria-label="Users favorite colors and age"
               aria-readonly="true"
-              mdSort mdSortActive="age"
-              mdSortDirection="asc">
+              matSort matSortActive="age"
+              matSortDirection="asc">
       <ng-container cdkColumnDef="name">
         <mat-header-cell *cdkHeaderCellDef>Name</mat-header-cell>
         <mat-cell *cdkCellDef="let row">{{row.name}}</mat-cell>

src/demo-app/table/table-demo.scss

@@ -36,7 +36,7 @@
 
 .user-row {
   cursor: pointer;
-  position: relative; // For mdRipple
+  position: relative; // For matRipple
 
   &:hover {
     background: #f5f5f5;

src/lib/expansion/expansion-panel.ts

@@ -64,7 +64,7 @@ export type MatExpansionPanelState = 'expanded' | 'collapsed';
  * <mat-expansion-panel> component.
  *
  * This component can be used as a single element to show expandable content, or as one of
- * multiple children of an element with the MdAccordion directive attached.
+ * multiple children of an element with the MatAccordion directive attached.
  *
  * Please refer to README.md for examples on how to use it.
  */

src/lib/icon/icon.spec.ts

@@ -124,26 +124,26 @@ describe('MatIcon', () => {
       let fixture = TestBed.createComponent(IconFromSvgName);
       let svgElement: SVGElement;
       const testComponent = fixture.componentInstance;
-      const mdIconElement = fixture.debugElement.nativeElement.querySelector('mat-icon');
+      const iconElement = fixture.debugElement.nativeElement.querySelector('mat-icon');
 
       testComponent.iconName = 'fido';
       fixture.detectChanges();
       http.expectOne('dog.svg').flush(FAKE_SVGS.dog);
-      svgElement = verifyAndGetSingleSvgChild(mdIconElement);
+      svgElement = verifyAndGetSingleSvgChild(iconElement);
       verifyPathChildElement(svgElement, 'woof');
 
       // Change the icon, and the SVG element should be replaced.
       testComponent.iconName = 'fluffy';
       fixture.detectChanges();
       http.expectOne('cat.svg').flush(FAKE_SVGS.cat);
-      svgElement = verifyAndGetSingleSvgChild(mdIconElement);
+      svgElement = verifyAndGetSingleSvgChild(iconElement);
       verifyPathChildElement(svgElement, 'meow');
 
       // Using an icon from a previously loaded URL should not cause another HTTP request.
       testComponent.iconName = 'fido';
       fixture.detectChanges();
       http.expectNone('dog.svg');
-      svgElement = verifyAndGetSingleSvgChild(mdIconElement);
+      svgElement = verifyAndGetSingleSvgChild(iconElement);
       verifyPathChildElement(svgElement, 'woof');
 
       // Assert that a registered icon can be looked-up by url.