[Bug]: @typespec/openapi3 emitter crashed when nested object having field name 'set'

[vokup]

Describe the bug

@typespec/openapi3 crashed while compiling when nested object having field name set.

Dependencies described in package.json

"dependencies": {
    "@typespec/compiler": "1.4.0",
    "@typespec/http": "1.4.0",
    "@typespec/rest": "0.74.0",
    "@typespec/openapi": "1.4.0",
    "@typespec/openapi3": "1.4.0"
}

Example

@route("/example")
@tag("Example")
interface Example {
  @get
  example(
    @body request: {
      field: { set: true; value?: string }
    }
  ): { message: string }
}

But when I change the field name set to anything else like assign then it compiles succesfully.

@route("/example")
@tag("Example")
interface Example {
  @get
  example(
    @body request: {
      field: { assign: true; value?: string }
    }
  ): { message: string }
}

Stack Traces

> tsp compile .

TypeSpec compiler v1.4.0

⚠ Compiling
× Running @typespec/openapi3...
Emitter "@typespec/openapi3" crashed! This is a bug.
Please file an issue at https://github.com/microsoft/typespec/issues

TypeError: props.set is not a function
    at OpenAPI31SchemaEmitter.modelProperties (file:///node_modules/@typespec/openapi3/dist/src/schema-emitter.js:238:19)
    at file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:376:55
    at withTypeContext (file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:519:9)
    at invokeTypeEmitter (file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:366:9)
    at Object.emitModelProperties (file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:309:25)
    at OpenAPI31SchemaEmitter.modelLiteral (file:///node_modules/@typespec/openapi3/dist/src/schema-emitter.js:162:38)
    at file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:376:55
    at withTypeContext (file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:519:9)
    at invokeTypeEmitter (file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:366:9)
    at Object.emitType (file:///node_modules/@typespec/asset-emitter/dist/src/asset-emitter.js:267:28)

Reproduction

Playground Link

Checklist

• Follow our Code of Conduct
• Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[timotheeguerin]

Smaller repro just seems to need a property named set and another one in the same model after

model Foo {
  set: true;
  value?: string;
}