Floating-point param in params block doesn't work

[bentsherman]

Bug report

The following example:

params {
    foo: Float = 0.1
}

workflow {
}

Produces the following error:

$ NXF_SYNTAX_PARSER=v2 nextflow run main.nf

Parameter `foo` with type Float cannot be assigned to 0.1 [BigDecimal]

This is because floating-point literals are interpreted as BigDecimal by the script parser.

Likely the Float type in Nextflow should be treated as an alias for Float / Double / BigDecimal so that it can accept any. Or perhaps the parser should cast float literals to Double and raise an error / warning if a literal can't be represented