New GHCi command to print out the type of an expression without instantiating

#11376 (closed) changed the meaning of :type to deeply instantiate a type before printing. This means that we can't see which variables were specified and which were inferred.

I propose :type-spec (please suggest a better name) that does not instantiate first.

Phab patch to be posted shortly.

Trac metadata

Trac field	Value
Version	8.1
Type	FeatureRequest
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
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Operating system
Architecture

changed weight to 5

added GHCi Tfeature request Trac import labels

Trac metadata

Trac field	Value
Differential revisions	- → D2136

I'm not keen on adding :type-spec; see my comment on #10963 (closed) (comment:5)

mentioned in issue #12131

mentioned in commit 8035d1a5

changed milestone to %8.0.2

I would love to see this merged, so that we don't have to wait until 8.2. But I won't cry (hard) if it doesn't.

added 1 deleted label

mentioned in commit 4ae950fb

Trac metadata

Trac field	Value
Test case	- → ghci/scripts/T11975

closed

changed milestone to %8.2.1

We're going to bump this off to 8.2.1 per ticket:10963#comment:123918.

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed

removed 1 deleted label

mentioned in issue #13401 (closed)

mentioned in commit 82ee71fa

added Pnormal label