also take number of highlight ranges into account, fixes #14660

src/vs/editor/contrib/suggest/common/completionModel.ts

@@ -231,12 +231,13 @@ export class CompletionModel {
 			}
 		}
 
-		// combine the four scoring values into one
+		// combine the five scoring values into one
 		// value using base_100. Values further left
 		// are more important
 		return (CompletionModel._base ** 4) * caseSensitiveMatches
 			+ (CompletionModel._base ** 3) * caseInsensitiveMatches
 			+ (CompletionModel._base ** 2) * (CompletionModel._base - firstMatchStart)
-			+ (CompletionModel._base ** 1) * (CompletionModel._base - notMatching);
+			+ (CompletionModel._base ** 1) * (CompletionModel._base - highlights.length)
+			+ (CompletionModel._base ** 0) * (CompletionModel._base - notMatching);
 	}
 }

src/vs/editor/contrib/suggest/test/common/completionModel.test.ts

@@ -144,5 +144,6 @@ suite('CompletionModel', function () {
 		assertTopScore('editor.R', 1, 'diffEditor.renderSideBySide', 'editor.overviewRulerlanes', 'editor.renderControlCharacter', 'editor.renderWhitespace');
 		assertTopScore('Editor.r', 0, 'diffEditor.renderSideBySide', 'editor.overviewRulerlanes', 'editor.renderControlCharacter', 'editor.renderWhitespace');
 
+		assertTopScore('-mo', 1, '-ms-ime-mode', '-moz-columns');
 	});
 });