message: fix(compiler-cli): correct realPath to realpath.
  The optional property on `ts.CompilerHost` is called `realpath` (lower
  case), not `realPath` (lower camel case).
  It is not clear to me what the impact of this is, but the author's
  intent was clearly to override `realpath`.
  PR Close
diff: @@ -591,7 +591,7 @@ export class TsCompilerAotCompilerTypeCheckHostAdapter implements ts.CompilerHos
  getNewLine = () => this.context.getNewLine();
  // Make sure we do not `host.realpath()` from TS as we do not want to resolve symlinks.
  // https://github.com/Microsoft/TypeScript/issues/9552
  - realPath = (p: string) => p;
  + realpath = (p: string) => p;
  writeFile = this.context.writeFile.bind(this.context);
  }
  