combine all origin selection ranges when having multiple go-to via mouse result (microsoft#165349)

fixes microsoft#160958

Author: jrieken

src/vs/editor/contrib/gotoSymbol/browser/link/goToDefinitionAtPosition.ts

@@ -164,10 +164,22 @@ export class GotoDefinitionAtPositionEditorContribution implements IEditorContri
 				return;
 			}
 
+			const linkRange = results[0].originSelectionRange
+				? Range.lift(results[0].originSelectionRange)
+				: new Range(position.lineNumber, word.startColumn, position.lineNumber, word.endColumn);
+
 			// Multiple results
 			if (results.length > 1) {
+
+				let combinedRange = linkRange;
+				for (const { originSelectionRange } of results) {
+					if (originSelectionRange) {
+						combinedRange = Range.plusRange(combinedRange, originSelectionRange);
+					}
+				}
+
 				this.addDecoration(
-					new Range(position.lineNumber, word.startColumn, position.lineNumber, word.endColumn),
+					combinedRange,
 					new MarkdownString().appendText(nls.localize('multipleResults', "Click to show {0} definitions.", results.length))
 				);
 			}
@@ -197,17 +209,9 @@ export class GotoDefinitionAtPositionEditorContribution implements IEditorContri
 					}
 
 					const previewValue = this.getPreviewValue(textEditorModel, startLineNumber, result);
-
-					let wordRange: Range;
-					if (result.originSelectionRange) {
-						wordRange = Range.lift(result.originSelectionRange);
-					} else {
-						wordRange = new Range(position.lineNumber, word.startColumn, position.lineNumber, word.endColumn);
-					}
-
 					const languageId = this.languageService.guessLanguageIdByFilepathOrFirstLine(textEditorModel.uri);
 					this.addDecoration(
-						wordRange,
+						linkRange,
 						new MarkdownString().appendCodeblock(languageId ? languageId : '', previewValue)
 					);
 					ref.dispose();