Initial VS Code 1.19 source merge (#571)

* Initial 1.19 xcopy

* Fix yarn build

* Fix numerous build breaks

* Next batch of build break fixes

* More build break fixes

* Runtime breaks

* Additional post merge fixes

* Fix windows setup file

* Fix test failures.

* Update license header blocks to refer to source eula

src/vs/platform/clipboard/common/clipboardService.ts

@@ -17,4 +17,19 @@ export interface IClipboardService {
 	 * Writes text to the system clipboard.
 	 */
 	writeText(text: string): void;
-}
+
+	/**
+	 * Reads the content of the clipboard in plain text
+	 */
+	readText(): string;
+
+	/**
+	 * Reads text from the system find pasteboard.
+	 */
+	readFindText(): string;
+
+	/**
+	 * Writes text to the system find pasteboard.
+	 */
+	writeFindText(text: string): void;
+}