fix(): adds directive constants to all components (#514)

closes #513

src/components/icon/icon.ts

@@ -222,3 +222,5 @@ export class MdIcon implements OnChanges, OnInit, AfterViewChecked {
     }
   }
 }
+
+export const MD_ICON_DIRECTIVES = [MdIcon];

src/components/input/input.ts

@@ -297,8 +297,4 @@ export class MdInput implements ControlValueAccessor, AfterContentInit, OnChange
   }
 }
 
-export const MD_INPUT_DIRECTIVES: any[] = [
-  MdPlaceholder,
-  MdInput,
-  MdHint,
-];
+export const MD_INPUT_DIRECTIVES = [MdPlaceholder, MdInput, MdHint];

src/components/list/list.ts

@@ -90,4 +90,4 @@ export class MdListItem implements AfterContentInit {
   }
 }
 
-export const MD_LIST_DIRECTIVES: any[] = [MdList, MdListItem, MdLine, MdListAvatar];
+export const MD_LIST_DIRECTIVES = [MdList, MdListItem, MdLine, MdListAvatar];

src/components/progress-bar/progress-bar.ts

@@ -88,3 +88,5 @@ export class MdProgressBar {
 function clamp(v: number, min = 0, max = 100) {
   return Math.max(min, Math.min(max, v));
 }
+
+export const MD_PROGRESS_BAR_DIRECTIVES = [MdProgressBar];

src/components/progress-circle/progress-circle.ts

@@ -292,3 +292,5 @@ function getSvgArc(currentValue: number, rotation: number) {
 
   return `M${start}A${pathRadius},${pathRadius} 0 ${largeArcFlag},${arcSweep} ${end}`;
 }
+
+export const MD_PROGRESS_CIRCLE_DIRECTIVES = [MdProgressCircle, MdSpinner];

src/components/sidenav/sidenav.ts

@@ -8,7 +8,6 @@ import {
     Optional,
     Output,
     QueryList,
-    Type,
     ChangeDetectionStrategy,
     EventEmitter,
     Renderer
@@ -375,4 +374,4 @@ export class MdSidenavLayout implements AfterContentInit {
 }
 
 
-export const MD_SIDENAV_DIRECTIVES: Type[] = [MdSidenavLayout, MdSidenav];
+export const MD_SIDENAV_DIRECTIVES = [MdSidenavLayout, MdSidenav];

src/components/slide-toggle/slide-toggle.ts

@@ -169,3 +169,5 @@ export class MdSlideToggle implements ControlValueAccessor {
   }
 
 }
+
+export const MD_SLIDE_TOGGLE_DIRECTIVES = [MdSlideToggle];

src/components/toolbar/toolbar.ts

@@ -41,3 +41,5 @@ export class MdToolbar {
   }
 
 }
+
+export const MD_TOOLBAR_DIRECTIVES = [MdToolbar];