Gabritto/semicolons (#46832)

* call formatter in completions

* fixes

* add test

* update api baselines

* fix createModifiersFromModifierFlag to not return empty array

tests/cases/fourslash/completionsOverridingMethod11.ts

@@ -0,0 +1,69 @@
+/// <reference path="fourslash.ts" />
+
+// @Filename: a.ts
+// @newline: LF
+// Case: formatting: no semicolons
+////function foo() {
+////    const a = 1
+////    const b = 2
+////    foo()
+////    return a + b
+////}
+////
+////interface Base {
+////    a: string
+////    b(a: string): void
+////    c(a: string): string
+////    c(a: number): number
+////}
+////class Sub implements Base {
+////   /*a*/
+////}
+
+verify.completions({
+    marker: "a",
+    isNewIdentifierLocation: true,
+    preferences: {
+        includeCompletionsWithInsertText: true,
+        includeCompletionsWithSnippetText: false,
+        includeCompletionsWithClassMemberSnippets: true,
+    },
+    includes: [
+        {
+            name: "a",
+            sortText: completion.SortText.LocationPriority,
+            replacementSpan: {
+                fileName: "",
+                pos: 0,
+                end: 0,
+            },
+            insertText: "a: string",
+        },
+        {
+            name: "b",
+            sortText: completion.SortText.LocationPriority,
+            replacementSpan: {
+                fileName: "",
+                pos: 0,
+                end: 0,
+            },
+            insertText:
+`b(a: string): void {
+}`,
+        },
+        {
+            name: "c",
+            sortText: completion.SortText.LocationPriority,
+            replacementSpan: {
+                fileName: "",
+                pos: 0,
+                end: 0,
+            },
+            insertText:
+`c(a: string): string
+c(a: number): number
+c(a: any): string | number {
+}`,
+        },
+    ],
+});