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/editor/contrib/hover/hover.css

@@ -0,0 +1,69 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+.monaco-editor-hover {
+	cursor: default;
+	position: absolute;
+	overflow: hidden;
+	z-index: 50;
+	-webkit-user-select: text;
+	-ms-user-select: text;
+	-khtml-user-select: text;
+	-moz-user-select: text;
+	-o-user-select: text;
+	user-select: text;
+	box-sizing: initial;
+	animation: fadein 100ms linear;
+	line-height: 1.5em;
+}
+
+.monaco-editor-hover.hidden {
+	display: none;
+}
+
+.monaco-editor-hover .monaco-editor-hover-content {
+	max-width: 500px;
+}
+
+.monaco-editor-hover .hover-row {
+	padding: 4px 5px;
+}
+
+.monaco-editor-hover p,
+.monaco-editor-hover ul {
+	margin: 8px 0;
+}
+
+.monaco-editor-hover p:first-child,
+.monaco-editor-hover ul:first-child {
+	margin-top: 0;
+}
+
+.monaco-editor-hover p:last-child,
+.monaco-editor-hover ul:last-child {
+	margin-bottom: 0;
+}
+
+.monaco-editor-hover ul {
+	padding-left: 20px;
+}
+
+.monaco-editor-hover li > p {
+	margin-bottom: 0;
+}
+
+.monaco-editor-hover li > ul {
+	margin-top: 0;
+}
+
+.monaco-editor-hover code {
+	border-radius: 3px;
+	padding: 0 0.4em;
+}
+
+.monaco-editor-hover .monaco-tokenized-source {
+	white-space: pre-wrap;
+	word-break: break-all;
+}