hcl: stop number if whitespace
hcl: stop number if whitespace

/cc @sbinet - The issue was in the lexer. It was seeing:

1.2e-10
e =

As:

1.2e-10e

jbaxleyiii/hcl,hashicorp/hcl,strivecast/hcl,hashicorp/hcl,yudai/hcl,savaki/hcl,wangtuanjie/hcl,KONTRAKT-DLL/hcl,hashicorp/hcl,strivecast/hcl,peter1000/hcl,hashicorp/hcl,glenjamin/hcl,strivecast/hcl,ianremmler/hcl,strivecast/hcl,hashicorp/hcl,strivecast/hcl