Use getJsDocFromText to get trailing comments

Also update a couple of missed spots in the previous undo commits

Author: sandersn

src/compiler/emitter.ts

@@ -8288,11 +8288,7 @@ const _super = (function (geti, seti) {
                 emitNewLineBeforeLeadingComments(currentLineMap, writer, node, leadingComments);
 
                 // Leading comments are emitted at /*leading comment1 */space/*leading comment*/space
-                // However, a leading mid-line comment of the end of file token is emitted with spaces before,
-                // as if it were a trailing comment of the previous token
-                const commentStartsInMidLine = leadingComments && leadingComments.length && leadingComments[0].pos - 1 > 0 && currentText.charCodeAt(leadingComments[0].pos - 1) !== 10;
-                const isEndOfFile = node.kind === SyntaxKind.EndOfFileToken && commentStartsInMidLine;
-                emitComments(currentText, currentLineMap, writer, leadingComments, /*trailingSeparator*/ !isEndOfFile, newLine, writeComment);
+                emitComments(currentText, currentLineMap, writer, leadingComments, /*trailingSeparator*/ true, newLine, writeComment);
             }
 
             function emitTrailingComments(node: Node) {

src/compiler/parser.ts

@@ -652,7 +652,7 @@ namespace ts {
 
 
         function addJSDocComment<T extends Node>(node: T): T {
-            const comments = getLeadingCommentRangesOfNode(node, sourceFile);
+            const comments = getJsDocCommentsFromText(node, sourceFile.text);
             if (comments) {
                 for (const comment of comments) {
                     const jsDoc = JSDocParser.parseJSDocComment(node, comment.pos, comment.end - comment.pos);

tests/baselines/reference/errorSupression1.js

@@ -18,4 +18,4 @@ var Foo = (function () {
 var baz = Foo.b;
 // Foo.b won't bind. 
 baz.concat("y");
- // So we don't want an error on 'concat'.
+// So we don't want an error on 'concat'.