IsPackagePath does not consider aliases from tsconfig.json

[gorbak25]

esbuild/internal/resolver/resolver.go

Line 2460 in deb93e9

func IsPackagePath(path string) bool {

When bundling for nodejs with --packages=external enabled if there is an alias in tsconfig this function will classify such an import as an external module instead of an internal one.
Here is a minimal reproduction https://github.com/gorbak25/esbuild-bug-IsPackagePath

[devlsh]

Also currently experiencing this myself.

[evanw]

Linking this issue to #3238.