feat: move coercing to cdk package

* Moves the coercing to the CDK package
* Fixes linking between Material and CDK package for tests (creating the index.ts file - similar as in angular/angular)
*

Author: devversion

src/lib/core/coercion/boolean-property.spec.ts renamed to src/cdk/coercion/boolean-property.spec.ts

@@ -1,7 +1,7 @@
 import {coerceBooleanProperty} from './boolean-property';
 
-
 describe('coerceBooleanProperty', () => {
+
   it('should coerce undefined to false', () => {
     expect(coerceBooleanProperty(undefined)).toBe(false);
   });
@@ -45,4 +45,5 @@ describe('coerceBooleanProperty', () => {
   it('should coerce an array to true', () => {
     expect(coerceBooleanProperty([])).toBe(true);
   });
+
 });

src/lib/core/coercion/boolean-property.ts renamed to src/cdk/coercion/boolean-property.ts

@@ -0,0 +1,10 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+export * from './boolean-property';
+export * from './number-property';

src/cdk/coercion/index.ts

@@ -1,7 +1,7 @@
 import {coerceNumberProperty} from './number-property';
 
-
 describe('coerceNumberProperty', () => {
+
   it('should coerce undefined to 0 or default', () => {
     expect(coerceNumberProperty(undefined)).toBe(0);
     expect(coerceNumberProperty(undefined, 111)).toBe(111);
@@ -78,4 +78,5 @@ describe('coerceNumberProperty', () => {
     expect(coerceNumberProperty([])).toBe(0);
     expect(coerceNumberProperty([], 111)).toBe(111);
   });
+
 });

src/lib/core/coercion/number-property.spec.ts renamed to src/cdk/coercion/number-property.spec.ts

@@ -0,0 +1,13 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+/*
+ * This file is not used to build this module. The real "index.js" file will be generated by the
+ * Angular Compiler CLI. This file is necessary for running the tests.
+ */
+export * from './public_api';

src/lib/core/coercion/number-property.ts renamed to src/cdk/coercion/number-property.ts

@@ -6,4 +6,4 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-export const __TEMP__ = -1;
+export * from './coercion/index';

src/cdk/index.ts

@@ -11,6 +11,7 @@
     "experimentalDecorators": true
   },
   "include": [
-    "**/*.spec.ts"
+    "**/*.spec.ts",
+    "index.ts"
   ]
 }

src/cdk/public_api.ts

@@ -22,7 +22,7 @@ import {
   ViewEncapsulation,
 } from '@angular/core';
 import {ControlValueAccessor, NG_VALUE_ACCESSOR} from '@angular/forms';
-import {coerceBooleanProperty} from '../core/coercion/boolean-property';
+import {coerceBooleanProperty} from '@angular/cdk';
 import {FocusOrigin, FocusOriginMonitor, MdRipple, RippleRef} from '../core';
 import {mixinDisabled, CanDisable} from '../core/common-behaviors/disabled';
 import {CanColor, mixinColor} from '../core/common-behaviors/color';

src/cdk/tsconfig-tests.json

@@ -19,8 +19,8 @@ import {
 
 import {MdChip} from './chip';
 import {FocusKeyManager} from '../core/a11y/focus-key-manager';
-import {coerceBooleanProperty} from '../core/coercion/boolean-property';
 import {SPACE, LEFT_ARROW, RIGHT_ARROW, TAB} from '../core/keyboard/keycodes';
+import {coerceBooleanProperty} from '@angular/cdk';
 import {Subscription} from 'rxjs/Subscription';
 
 /**