Add message in protocol.d.ts and rename "rebuildProjects" to "reloadProjects"

src/server/editorServices.ts

@@ -769,7 +769,7 @@ namespace ts.server {
             return referencingProjects;
         }
 
-        rebuildProjectStructure() {
+        reloadProjects() {
             // First check if there is new tsconfig file added for inferred project roots
             for (let info of this.openFileRoots) {
                 this.openOrUpdateConfiguredProjectForFile(info.fileName);

src/server/protocol.d.ts

@@ -31,6 +31,12 @@ declare namespace ts.server.protocol {
           */
         arguments?: any;
     }
+    
+    /**
+      * Request to reload the project structure for all the opened files 
+      */
+    export interface ReloadProjectsRequest extends Message {
+    }
 
     /** 
       * Server-initiated event message 

src/server/session.ts

@@ -100,7 +100,7 @@ namespace ts.server {
         export const SignatureHelp = "signatureHelp";
         export const TypeDefinition = "typeDefinition";
         export const ProjectInfo = "projectInfo";
-        export const RebuildProjects = "rebuildProjects";
+        export const ReloadProjects = "reloadProjects";
         export const Unknown = "unknown";
     }
 
@@ -228,8 +228,8 @@ namespace ts.server {
             this.semanticCheck(file, project);
         }
         
-        private rebuildProjectStructure() {
-            this.projectService.rebuildProjectStructure();
+        private reloadProjects() {
+            this.projectService.reloadProjects();
         }
 
         private updateProjectStructure(seq: number, matchSeq: (seq: number) => boolean, ms = 1500) {
@@ -1038,8 +1038,8 @@ namespace ts.server {
                 var { file, needFileNameList } = <protocol.ProjectInfoRequestArgs>request.arguments;
                 return {response: this.getProjectInfo(file, needFileNameList), responseRequired: true};
             },
-            [CommandNames.RebuildProjects]: (request: protocol.Request) => {
-                this.rebuildProjectStructure();
+            [CommandNames.ReloadProjects]: (request: protocol.ReloadProjectsRequest) => {
+                this.reloadProjects();
                 return {responseRequired: false};
             }
         };