!771 monthly1018分支解决联合类型含void类型时自动mock代码编译失败问题

Merge pull request !771 from fupengfei/monthly_20221018

mock-generate/src/generate/generateCommonUtil.ts

@@ -99,6 +99,9 @@ export function getReturnStatement(returnType: ReturnTypeEntity, sourceFile: Sou
         break;
       }
     }
+    if (returnName.trimStart().trimEnd() === 'void') {
+      return ``;
+    }
     if (getClassNameSet().has(returnName)) {
       return `return new ${returnName}()`;
     } else {