Change codefix message

Author: srolel

src/compiler/diagnosticMessages.json

@@ -3843,7 +3843,7 @@
         "category": "Message",
         "code": 90028
     },
-    "Convert to async": {
+    "Add async modifier to containing function": {
         "category": "Message",
         "code": 90029
     },

tests/cases/fourslash/codeFixAwaitInSyncFunction1.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `async function f() {
     await Promise.resolve();

tests/cases/fourslash/codeFixAwaitInSyncFunction10.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f: () => Promise<number | string> = async () => {
     await Promise.resolve('foo');

tests/cases/fourslash/codeFixAwaitInSyncFunction11.ts

@@ -6,7 +6,7 @@
 
 // should not change type if it's incorrectly set
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f: string = async () => {
     await Promise.resolve('foo');

tests/cases/fourslash/codeFixAwaitInSyncFunction12.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f: () => Promise<Array<number | string>> = async function() {
     await Promise.resolve([]);

tests/cases/fourslash/codeFixAwaitInSyncFunction13.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f: () => Promise<number | string> = async () => {
     await Promise.resolve('foo');

tests/cases/fourslash/codeFixAwaitInSyncFunction14.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f = async function(): Promise<number> {
     await Promise.resolve(1);

tests/cases/fourslash/codeFixAwaitInSyncFunction15.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f = async (): Promise<number[]> => {
     await Promise.resolve([1]);

tests/cases/fourslash/codeFixAwaitInSyncFunction2.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f = async function() {
     await Promise.resolve();

tests/cases/fourslash/codeFixAwaitInSyncFunction5.ts

@@ -7,7 +7,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `class Foo {
     async bar() {

tests/cases/fourslash/codeFixAwaitInSyncFunction6.5.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f = async promise => {
     await promise;

tests/cases/fourslash/codeFixAwaitInSyncFunction6.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `const f = async (promise) => {
     await promise;

tests/cases/fourslash/codeFixAwaitInSyncFunction7.ts

@@ -7,7 +7,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `async function f() {
     for await (const x of g()) {

tests/cases/fourslash/codeFixAwaitInSyncFunction8.ts

@@ -5,7 +5,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `async function f(): Promise<number | string> {
     await Promise.resolve(8);

tests/cases/fourslash/codeFixAwaitInSyncFunction9.ts

@@ -7,7 +7,7 @@
 ////}
 
 verify.codeFix({
-    description: "Convert to async",
+    description: "Add async modifier to containing function",
     newFileContent:
 `class Foo {
     async bar(): Promise<string> {